add some features

2026-07-07 15:25:57 +02:00
parent b38aa268ef
commit 3175ea81fe
20 changed files with 2859 additions and 156 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@ node_modules
 vite.config.js.timestamp-*
 vite.config.ts.timestamp-*
 /faktury
+/trainhub-flutter
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,6 +11,7 @@
      "dependencies": {
        "@tauri-apps/api": "^2",
        "@tauri-apps/plugin-dialog": "^2.7.1",
+        "@tauri-apps/plugin-http": "^2.5.9",
        "@tauri-apps/plugin-opener": "^2",
        "@tauri-apps/plugin-sql": "^2.4.0"
      },
@@ -1229,6 +1230,15 @@
        "@tauri-apps/api": "^2.11.0"
      }
    },
+    "node_modules/@tauri-apps/plugin-http": {
+      "version": "2.5.9",
+      "resolved": "https://registry.npmjs.org/@tauri-apps/plugin-http/-/plugin-http-2.5.9.tgz",
+      "integrity": "sha512-lCiY0+vs4HvIUSvZrBs8TC3TiCB0MOPRmiUjTq4prW7SlcJE2jdLeT6KBsJrT9Tlplufl7W1pY6SFAO3gCWxDA==",
+      "license": "MIT OR Apache-2.0",
+      "dependencies": {
+        "@tauri-apps/api": "^2.11.0"
+      }
+    },
    "node_modules/@tauri-apps/plugin-opener": {
      "version": "2.5.4",
      "resolved": "https://registry.npmjs.org/@tauri-apps/plugin-opener/-/plugin-opener-2.5.4.tgz",
--- a/package.json
+++ b/package.json
@@ -15,6 +15,7 @@
  "dependencies": {
    "@tauri-apps/api": "^2",
    "@tauri-apps/plugin-dialog": "^2.7.1",
+    "@tauri-apps/plugin-http": "^2.5.9",
    "@tauri-apps/plugin-opener": "^2",
    "@tauri-apps/plugin-sql": "^2.4.0"
  },
--- a/src-tauri/Cargo.lock
+++ b/src-tauri/Cargo.lock
--- a/src-tauri/Cargo.toml
+++ b/src-tauri/Cargo.toml
@@ -25,4 +25,9 @@ serde_json = "1"
 tauri-plugin-sql = { version = "2.4.0", features = ["sqlite"] }
 tauri-plugin-dialog = "2.7.1"
 chrono = "0.4.45"
+tauri-plugin-http = "2.5.9"
+reqwest = { version = "0.13.4", features = ["stream"] }
+zip = "8.6.0"
+futures-util = "0.3.32"
+tokio = { version = "1.52.3", features = ["time"] }

--- a/src-tauri/capabilities/default.json
+++ b/src-tauri/capabilities/default.json
@@ -8,6 +8,15 @@
    "opener:default",
    "sql:default",
    "sql:allow-execute",
-    "dialog:default"
+    "dialog:default",
+    {
+      "identifier": "http:default",
+      "allow": [
+        { "url": "https://api.anthropic.com/*" },
+        { "url": "https://api.openai.com/*" },
+        { "url": "http://localhost:*/*" },
+        { "url": "http://127.0.0.1:*/*" }
+      ]
+    }
  ]
 }
--- a/src-tauri/src/lib.rs
+++ b/src-tauri/src/lib.rs
@@ -1,3 +1,8 @@
+mod llama;
+
+use std::sync::Mutex;
+
+use tauri::Manager;
 use tauri_plugin_sql::{Migration, MigrationKind};

 fn migrations() -> Vec<Migration> {
@@ -148,14 +153,35 @@ fn migrations() -> Vec<Migration> {
            UPDATE reservations SET prepared = 1 WHERE arrival < date('now');
        ",
        kind: MigrationKind::Up,
+    },
+    Migration {
+        version: 6,
+        description: "add_season_costs_ai",
+        sql: "
+            ALTER TABLE settings ADD COLUMN season_start_month INTEGER NOT NULL DEFAULT 5;
+            ALTER TABLE settings ADD COLUMN season_end_month INTEGER NOT NULL DEFAULT 9;
+            ALTER TABLE settings ADD COLUMN linen_cost REAL;
+            ALTER TABLE settings ADD COLUMN ai_provider TEXT NOT NULL DEFAULT 'anthropic';
+            ALTER TABLE settings ADD COLUMN ai_api_key TEXT;
+            ALTER TABLE settings ADD COLUMN ai_model TEXT;
+            ALTER TABLE settings ADD COLUMN ai_base_url TEXT;
+
+            CREATE TABLE costs (
+                id INTEGER PRIMARY KEY,
+                name TEXT NOT NULL,
+                amount REAL NOT NULL,
+                period TEXT NOT NULL DEFAULT 'year',
+                year INTEGER,
+                notes TEXT
+            );
+        ",
+        kind: MigrationKind::Up,
    }]
 }

 /// Kopia bazy przy starcie (zanim plugin SQL otworzy połączenia):
 /// backups/sloneczko-RRRR-MM-DD.db obok pliku bazy, retencja 14 ostatnich.
 fn auto_backup(app: &tauri::AppHandle) -> std::io::Result<()> {
-    use tauri::Manager;
-
    let candidates = [app.path().app_config_dir(), app.path().app_data_dir()];
    for dir in candidates.into_iter().flatten() {
        let db = dir.join("sloneczko.db");
@@ -195,7 +221,14 @@ fn save_text_file(path: String, contents: String) -> Result<(), String> {
 #[cfg_attr(mobile, tauri::mobile_entry_point)]
 pub fn run() {
    tauri::Builder::default()
-        .invoke_handler(tauri::generate_handler![save_text_file])
+        .manage(llama::LlamaState(Mutex::new(None)))
+        .invoke_handler(tauri::generate_handler![
+            save_text_file,
+            llama::llama_status,
+            llama::llama_download,
+            llama::llama_start,
+            llama::llama_stop
+        ])
        .setup(|app| {
            if let Err(e) = auto_backup(app.handle()) {
                eprintln!("Nie udało się wykonać kopii zapasowej: {e}");
@@ -208,7 +241,16 @@ pub fn run() {
                .build(),
        )
        .plugin(tauri_plugin_dialog::init())
+        .plugin(tauri_plugin_http::init())
        .plugin(tauri_plugin_opener::init())
-        .run(tauri::generate_context!())
-        .expect("error while running tauri application");
+        .build(tauri::generate_context!())
+        .expect("error while running tauri application")
+        .run(|app, event| {
+            // llama-server nie może przeżyć aplikacji — zombie zjadałby RAM
+            if let tauri::RunEvent::Exit = event {
+                if let Some(state) = app.try_state::<llama::LlamaState>() {
+                    llama::kill(&state);
+                }
+            }
+        });
 }
--- a/src-tauri/src/llama.rs
+++ b/src-tauri/src/llama.rs
@@ -0,0 +1,328 @@
+//! Wbudowany serwer AI: zarządzanie procesem llama.cpp (llama-server)
+//! na wzór AiProcessManager z trainhub-flutter — pobieranie binarki i modelu,
+//! start z fallbackiem GPU -> CPU, health-poll, ubijanie przy zamknięciu.
+
+use std::fs;
+use std::io::Write;
+use std::path::{Path, PathBuf};
+use std::process::{Child, Command, Stdio};
+use std::sync::Mutex;
+use std::time::{Duration, Instant};
+
+use futures_util::StreamExt;
+use serde::Serialize;
+use tauri::{AppHandle, Emitter, Manager, State};
+
+pub const PORT: u16 = 8123;
+const LLAMA_BUILD: &str = "b8130";
+const SERVER_BINARY: &str = "llama-server.exe";
+const MODEL_FILE: &str = "qwen3-4b-instruct-2507-q4_k_m.gguf";
+const MODEL_URL: &str = "https://huggingface.co/bartowski/Qwen_Qwen3-4B-Instruct-2507-GGUF/resolve/main/Qwen_Qwen3-4B-Instruct-2507-Q4_K_M.gguf";
+// Plik mniejszy niż to minimum to pozostałość przerwanego pobierania.
+const MODEL_MIN_BYTES: u64 = 2_000_000_000;
+const BINARY_MIN_BYTES: u64 = 1_000_000;
+const CONTEXT_SIZE: u32 = 8192;
+const GPU_LAYERS: u32 = 99;
+const GPU_TIMEOUT_SECS: u64 = 300;
+const CPU_TIMEOUT_SECS: u64 = 180;
+
+pub struct LlamaState(pub Mutex<Option<Child>>);
+
+#[derive(Serialize, Clone)]
+pub struct LlamaStatus {
+    pub installed: bool,
+    pub running: bool,
+}
+
+#[derive(Serialize, Clone)]
+struct LlamaProgress {
+    task: String,
+    progress: Option<f64>,
+}
+
+fn emit_progress(app: &AppHandle, task: &str, progress: Option<f64>) {
+    let _ = app.emit(
+        "llama-progress",
+        LlamaProgress {
+            task: task.to_string(),
+            progress,
+        },
+    );
+}
+
+fn llama_dir(app: &AppHandle) -> Result<PathBuf, String> {
+    let dir = app
+        .path()
+        .app_data_dir()
+        .map_err(|e| e.to_string())?
+        .join("llama");
+    fs::create_dir_all(&dir).map_err(|e| e.to_string())?;
+    Ok(dir)
+}
+
+fn file_complete(path: &Path, min_bytes: u64) -> bool {
+    fs::metadata(path).map(|m| m.len() >= min_bytes).unwrap_or(false)
+}
+
+fn is_installed(dir: &Path) -> bool {
+    file_complete(&dir.join(SERVER_BINARY), BINARY_MIN_BYTES)
+        && file_complete(&dir.join(MODEL_FILE), MODEL_MIN_BYTES)
+}
+
+async fn is_healthy() -> bool {
+    let url = format!("http://127.0.0.1:{PORT}/health");
+    match reqwest::Client::new()
+        .get(&url)
+        .timeout(Duration::from_secs(2))
+        .send()
+        .await
+    {
+        Ok(res) => res.status().is_success(),
+        Err(_) => false,
+    }
+}
+
+/// Ubija proces serwera, jeśli działa. Bezpieczne przy braku procesu.
+pub fn kill(state: &LlamaState) {
+    if let Ok(mut guard) = state.0.lock() {
+        if let Some(mut child) = guard.take() {
+            let _ = child.kill();
+            let _ = child.wait();
+        }
+    }
+}
+
+/// Czy proces trzymany w stanie nadal żyje (sprząta uchwyt po padzie).
+fn child_alive(state: &LlamaState) -> bool {
+    let mut guard = match state.0.lock() {
+        Ok(g) => g,
+        Err(_) => return false,
+    };
+    match guard.as_mut() {
+        Some(child) => match child.try_wait() {
+            Ok(None) => true,
+            _ => {
+                *guard = None;
+                false
+            }
+        },
+        None => false,
+    }
+}
+
+#[tauri::command]
+pub async fn llama_status(
+    app: AppHandle,
+    state: State<'_, LlamaState>,
+) -> Result<LlamaStatus, String> {
+    let dir = llama_dir(&app)?;
+    let installed = is_installed(&dir);
+    let running = child_alive(&state) && is_healthy().await;
+    Ok(LlamaStatus { installed, running })
+}
+
+async fn download_file(
+    app: &AppHandle,
+    url: &str,
+    dest: &Path,
+    label: &str,
+    overall_start: f64,
+    overall_end: f64,
+    min_bytes: u64,
+) -> Result<(), String> {
+    if min_bytes > 0 && file_complete(dest, min_bytes) {
+        emit_progress(app, label, Some(overall_end));
+        return Ok(());
+    }
+    emit_progress(app, label, Some(overall_start));
+
+    // Pobieranie do pliku .part i podmiana na końcu — przerwane pobieranie
+    // nigdy nie udaje kompletnego pliku.
+    let part = dest.with_extension("part");
+    let response = reqwest::Client::new()
+        .get(url)
+        .send()
+        .await
+        .map_err(|e| format!("Błąd sieci: {e}"))?;
+    if !response.status().is_success() {
+        return Err(format!("Błąd pobierania (HTTP {}): {url}", response.status()));
+    }
+    let total = response.content_length().unwrap_or(0);
+    let mut file = fs::File::create(&part).map_err(|e| e.to_string())?;
+    let mut stream = response.bytes_stream();
+    let mut received: u64 = 0;
+    let mut last_permille: u64 = 0;
+    while let Some(chunk) = stream.next().await {
+        let chunk = chunk.map_err(|e| format!("Błąd sieci: {e}"))?;
+        file.write_all(&chunk).map_err(|e| e.to_string())?;
+        received += chunk.len() as u64;
+        if total > 0 {
+            let permille = received * 1000 / total;
+            if permille != last_permille {
+                last_permille = permille;
+                let progress =
+                    overall_start + (received as f64 / total as f64) * (overall_end - overall_start);
+                emit_progress(app, label, Some(progress));
+            }
+        }
+    }
+    drop(file);
+    if dest.exists() {
+        let _ = fs::remove_file(dest);
+    }
+    fs::rename(&part, dest).map_err(|e| e.to_string())?;
+    Ok(())
+}
+
+/// Wyciąga llama-server.exe i biblioteki .dll z archiwum wydania llama.cpp.
+fn extract_binary(archive: &Path, dest: &Path) -> Result<(), String> {
+    let file = fs::File::open(archive).map_err(|e| e.to_string())?;
+    let mut zip = zip::ZipArchive::new(file).map_err(|e| e.to_string())?;
+    let mut found_server = false;
+    for i in 0..zip.len() {
+        let mut entry = zip.by_index(i).map_err(|e| e.to_string())?;
+        if entry.is_dir() {
+            continue;
+        }
+        let name = entry.name().to_string();
+        let base = name
+            .rsplit(['/', '\\'])
+            .next()
+            .unwrap_or(&name)
+            .to_string();
+        let lower = base.to_lowercase();
+        if lower == SERVER_BINARY || lower.ends_with(".dll") {
+            let out_path = dest.join(&base);
+            let mut out = fs::File::create(&out_path).map_err(|e| e.to_string())?;
+            std::io::copy(&mut entry, &mut out).map_err(|e| e.to_string())?;
+            if lower == SERVER_BINARY {
+                found_server = true;
+            }
+        }
+    }
+    if found_server {
+        Ok(())
+    } else {
+        Err("Nie znaleziono llama-server.exe w archiwum.".to_string())
+    }
+}
+
+#[tauri::command]
+pub async fn llama_download(app: AppHandle, state: State<'_, LlamaState>) -> Result<(), String> {
+    kill(&state);
+    let dir = llama_dir(&app)?;
+
+    if !file_complete(&dir.join(SERVER_BINARY), BINARY_MIN_BYTES) {
+        let zip_url = format!(
+            "https://github.com/ggml-org/llama.cpp/releases/download/{LLAMA_BUILD}/llama-{LLAMA_BUILD}-bin-win-vulkan-x64.zip"
+        );
+        let archive = dir.join("llama.zip");
+        download_file(&app, &zip_url, &archive, "Pobieranie llama.cpp…", 0.0, 0.06, 0).await?;
+        emit_progress(&app, "Rozpakowywanie llama.cpp…", Some(0.06));
+        let archive_clone = archive.clone();
+        let dir_clone = dir.clone();
+        tauri::async_runtime::spawn_blocking(move || extract_binary(&archive_clone, &dir_clone))
+            .await
+            .map_err(|e| e.to_string())??;
+        let _ = fs::remove_file(&archive);
+    }
+
+    download_file(
+        &app,
+        MODEL_URL,
+        &dir.join(MODEL_FILE),
+        "Pobieranie modelu Qwen3 4B (~2,4 GB)…",
+        0.06,
+        1.0,
+        MODEL_MIN_BYTES,
+    )
+    .await?;
+    emit_progress(&app, "Pobieranie zakończone.", Some(1.0));
+    Ok(())
+}
+
+fn spawn_server(dir: &Path, gpu_layers: u32) -> Result<Child, String> {
+    let log = fs::File::create(dir.join("llama.log")).map_err(|e| e.to_string())?;
+    let mut cmd = Command::new(dir.join(SERVER_BINARY));
+    cmd.args([
+        "-m",
+        &dir.join(MODEL_FILE).to_string_lossy(),
+        "--port",
+        &PORT.to_string(),
+        "--ctx-size",
+        &CONTEXT_SIZE.to_string(),
+        "-ngl",
+        &gpu_layers.to_string(),
+        // szablon czatu wbudowany w GGUF — wymagany dla poprawnego formatu Qwen3
+        "--jinja",
+    ])
+    .current_dir(dir)
+    .stdout(Stdio::null())
+    .stderr(Stdio::from(log));
+
+    // bez migającego okna konsoli na Windowsie
+    #[cfg(windows)]
+    {
+        use std::os::windows::process::CommandExt;
+        const CREATE_NO_WINDOW: u32 = 0x0800_0000;
+        cmd.creation_flags(CREATE_NO_WINDOW);
+    }
+
+    cmd.spawn().map_err(|e| format!("Nie udało się uruchomić llama-server: {e}"))
+}
+
+#[tauri::command]
+pub async fn llama_start(app: AppHandle, state: State<'_, LlamaState>) -> Result<(), String> {
+    if child_alive(&state) && is_healthy().await {
+        return Ok(());
+    }
+    let dir = llama_dir(&app)?;
+    if !is_installed(&dir) {
+        return Err("Model nie jest zainstalowany — najpierw pobierz pliki.".to_string());
+    }
+
+    // Próba 1: pełny offload na GPU (Vulkan). Pierwsze uruchomienie kompiluje
+    // pipeline'y i może trwać minuty. Próba 2: sam CPU — ładuje przez mmap.
+    for (gpu_layers, timeout_secs, label) in
+        [(GPU_LAYERS, GPU_TIMEOUT_SECS, "GPU"), (0, CPU_TIMEOUT_SECS, "CPU")]
+    {
+        kill(&state);
+        let child = spawn_server(&dir, gpu_layers)?;
+        if let Ok(mut guard) = state.0.lock() {
+            *guard = Some(child);
+        }
+
+        let started = Instant::now();
+        while started.elapsed() < Duration::from_secs(timeout_secs) {
+            if !child_alive(&state) {
+                // proces padł — od razu przechodzimy do kolejnej próby
+                break;
+            }
+            if is_healthy().await {
+                emit_progress(&app, "Model gotowy.", None);
+                return Ok(());
+            }
+            emit_progress(
+                &app,
+                &format!(
+                    "Ładowanie modelu ({label})… {}s — pierwsze uruchomienie może potrwać kilka minut",
+                    started.elapsed().as_secs()
+                ),
+                None,
+            );
+            tokio::time::sleep(Duration::from_millis(750)).await;
+        }
+    }
+
+    kill(&state);
+    let log_hint = dir.join("llama.log").to_string_lossy().to_string();
+    Err(format!(
+        "Serwer AI nie wystartował (próbowano GPU i CPU). Szczegóły w pliku: {log_hint}"
+    ))
+}
+
+#[tauri::command]
+pub async fn llama_stop(state: State<'_, LlamaState>) -> Result<(), String> {
+    kill(&state);
+    Ok(())
+}
--- a/src/lib/ai.ts
+++ b/src/lib/ai.ts
@@ -0,0 +1,257 @@
+import { fetch } from "@tauri-apps/plugin-http";
+import { LLAMA_PORT } from "./llama";
+import * as db from "./db";
+import type { AiProvider, Settings } from "./types";
+import { daysInSeason, isoDate, MONTH_NAMES, seasonMonths, todayISO } from "./dates";
+import { formatMoney, round2 } from "./money";
+import { COST_PERIOD_LABELS, costPerYear, totalCostsForYear } from "./costs";
+
+export interface ChatMessage {
+  role: "user" | "assistant";
+  content: string;
+}
+
+export const AI_PROVIDER_LABELS: Record<AiProvider, string> = {
+  local: "Wbudowany (llama.cpp, offline)",
+  anthropic: "Anthropic (Claude)",
+  openai: "OpenAI",
+  ollama: "Ollama (lokalnie)",
+  lmstudio: "LM Studio (lokalnie)"
+};
+
+export const DEFAULT_MODELS: Record<AiProvider, string> = {
+  local: "Qwen3 4B Instruct",
+  anthropic: "claude-sonnet-5",
+  openai: "gpt-4o-mini",
+  ollama: "llama3.1",
+  lmstudio: "local-model"
+};
+
+export const DEFAULT_BASE_URLS: Partial<Record<AiProvider, string>> = {
+  ollama: "http://localhost:11434",
+  lmstudio: "http://localhost:1234"
+};
+
+export function providerNeedsKey(p: AiProvider): boolean {
+  return p === "anthropic" || p === "openai";
+}
+
+export function isAiConfigured(s: Settings): boolean {
+  return !providerNeedsKey(s.ai_provider) || !!s.ai_api_key?.trim();
+}
+
+const SYSTEM_PROMPT = `Jesteś asystentem menedżera małego ośrodka domków letniskowych „Słoneczko" w Polsce.
+Pomagasz w: planowaniu obłożenia i cen, znajdowaniu wolnych luk w sezonie, analizie przychodów i kosztów,
+oraz podpowiadaniu, jak zwiększyć zarobki możliwie małym nakładem pracy i pieniędzy.
+Zasady:
+- Odpowiadaj po polsku, zwięźle i konkretnie; opieraj się na danych z sekcji DANE poniżej i podawaj liczby.
+- Gdy proponujesz zmiany cen lub promocje, szacuj ich wpływ na przychód.
+- Pisz zwykłym tekstem bez formatowania markdown (bez gwiazdek, krzyżyków i tabel); listy zapisuj od myślników.
+- Jeśli danych brakuje, powiedz czego brakuje, zamiast zgadywać.`;
+
+/** Zwięzły obraz biznesu z bazy — doklejany do promptu systemowego przy każdej rozmowie. */
+export async function buildBusinessContext(): Promise<string> {
+  const year = new Date().getFullYear();
+  const from = isoDate(year, 0, 1);
+  const to = isoDate(year + 1, 0, 1);
+  const monthRanges = Array.from({ length: 12 }, (_, m) => ({
+    from: isoDate(year, m, 1),
+    to: m === 11 ? isoDate(year + 1, 0, 1) : isoDate(year, m + 1, 1)
+  }));
+
+  const [settings, cabins, priceSeasons, costs, yearStats, cabinStats, linenSets, ...months] =
+    await Promise.all([
+      db.getSettings(),
+      db.listCabins(),
+      db.listPriceSeasons(),
+      db.listCosts(),
+      db.revenueStats(from, to),
+      db.cabinReports(from, to),
+      db.linenSetsForYear(year),
+      ...monthRanges.map((r) => db.revenueStats(r.from, r.to))
+    ]);
+
+  const sMonths = seasonMonths(settings.season_start_month, settings.season_end_month);
+  const seasonDays = daysInSeason(year, settings.season_start_month, settings.season_end_month);
+  const availableNights = cabins.length * seasonDays;
+
+  const lines: string[] = [];
+  lines.push(`DANE OŚRODKA (stan na ${todayISO()}, rok ${year}):`);
+  lines.push(
+    `Sezon: ${MONTH_NAMES[settings.season_start_month - 1]}–${MONTH_NAMES[settings.season_end_month - 1]}` +
+      ` (${seasonDays} dni × ${cabins.length} domków = ${availableNights} dostępnych dób).`
+  );
+  lines.push(
+    `Domki: ${cabins.map((c) => `${c.name}${c.capacity ? ` (${c.capacity} os.)` : ""}`).join(", ")}.`
+  );
+
+  if (priceSeasons.length > 0) {
+    lines.push("Cennik sezonowy (za dobę):");
+    for (const p of priceSeasons) {
+      const cabinName = p.cabin_id == null
+        ? "wszystkie domki"
+        : (cabins.find((c) => c.id === p.cabin_id)?.name ?? `domek #${p.cabin_id}`);
+      lines.push(`- ${p.date_from} do ${p.date_to}: ${formatMoney(p.price)} zł (${cabinName})`);
+    }
+  } else {
+    lines.push("Cennik sezonowy: brak zdefiniowanych okresów.");
+  }
+
+  lines.push(`Obłożenie i przychód ${year} wg miesięcy (doby / % obłożenia / przychód, w nawiasie potwierdzony):`);
+  months.forEach((m, i) => {
+    if (m.nights_total <= 0 && !sMonths.includes(i + 1)) return;
+    const daysM = new Date(year, i + 1, 0).getDate();
+    const occ = cabins.length > 0 ? Math.round((m.nights_total / (cabins.length * daysM)) * 100) : 0;
+    const seasonTag = sMonths.includes(i + 1) ? "" : " [poza sezonem]";
+    lines.push(
+      `- ${MONTH_NAMES[i]}: ${Math.round(m.nights_total)} dób, ${occ}%, ${formatMoney(m.revenue_total)} zł (${formatMoney(m.revenue_confirmed)} zł)${seasonTag}`
+    );
+  });
+
+  lines.push("Wg domków (doby / przychód):");
+  for (const c of cabins) {
+    const r = cabinStats.find((x) => x.cabin_id === c.id);
+    lines.push(
+      `- ${c.name}: ${Math.round(r?.nights_total ?? 0)} dób, ${formatMoney(r?.revenue_total ?? 0)} zł`
+    );
+  }
+
+  const costsTotal = totalCostsForYear(costs, year, sMonths.length);
+  const linenCost = round2(linenSets * (settings.linen_cost ?? 0));
+  lines.push(`Koszty roczne (${year}):`);
+  for (const c of costs) {
+    const yearly = costPerYear(c, year, sMonths.length);
+    if (yearly > 0) {
+      lines.push(`- ${c.name}: ${formatMoney(yearly)} zł (${COST_PERIOD_LABELS[c.period]} ${formatMoney(c.amount)} zł)`);
+    }
+  }
+  if (settings.linen_cost != null) {
+    lines.push(`- Pościel: ${linenSets} kompletów × ${formatMoney(settings.linen_cost)} zł = ${formatMoney(linenCost)} zł`);
+  }
+  const totalAllCosts = round2(costsTotal + linenCost);
+  lines.push(`Koszty razem: ${formatMoney(totalAllCosts)} zł.`);
+  lines.push(
+    `Wynik ${year}: przychód potencjalny ${formatMoney(yearStats.revenue_total)} zł, potwierdzony ${formatMoney(yearStats.revenue_confirmed)} zł; ` +
+      `przewidywany zysk (potwierdzony − koszty): ${formatMoney(round2(yearStats.revenue_confirmed - totalAllCosts))} zł.`
+  );
+
+  return lines.join("\n");
+}
+
+// --- Streaming ---
+
+function handleSseLine(line: string, onData: (data: unknown) => void): void {
+  if (!line.startsWith("data: ")) return;
+  const dataStr = line.slice(6).trim();
+  if (!dataStr || dataStr === "[DONE]") return;
+  try {
+    onData(JSON.parse(dataStr));
+  } catch {
+    // uszkodzona linia — pomijamy
+  }
+}
+
+/** Czyta SSE strumieniowo; gdy strumień niedostępny, parsuje całą odpowiedź na raz. */
+async function readSse(res: Response, onData: (data: unknown) => void): Promise<void> {
+  const reader = res.body?.getReader();
+  if (!reader) {
+    for (const line of (await res.text()).split("\n")) handleSseLine(line, onData);
+    return;
+  }
+  const decoder = new TextDecoder();
+  let pending = "";
+  for (;;) {
+    const { done, value } = await reader.read();
+    if (done) break;
+    pending += decoder.decode(value, { stream: true });
+    const lines = pending.split("\n");
+    pending = lines.pop() ?? "";
+    for (const line of lines) handleSseLine(line, onData);
+  }
+  if (pending) handleSseLine(pending, onData);
+}
+
+interface AnthropicEvent {
+  type?: string;
+  delta?: { type?: string; text?: string };
+  error?: { message?: string };
+}
+
+interface OpenAiChunk {
+  choices?: { delta?: { content?: string } }[];
+}
+
+/**
+ * Wysyła rozmowę do skonfigurowanego dostawcy i przekazuje fragmenty odpowiedzi do onDelta.
+ * Kontekst biznesowy jest budowany z bazy przy każdym wywołaniu.
+ */
+export async function chat(
+  history: ChatMessage[],
+  settings: Settings,
+  onDelta: (text: string) => void,
+  signal?: AbortSignal
+): Promise<void> {
+  const system = `${SYSTEM_PROMPT}\n\n${await buildBusinessContext()}`;
+  const model = settings.ai_model?.trim() || DEFAULT_MODELS[settings.ai_provider];
+  const key = settings.ai_api_key?.trim() || null;
+
+  if (settings.ai_provider === "anthropic") {
+    if (!key) throw new Error("Brak klucza API Anthropic — uzupełnij w Ustawieniach.");
+    const res = await fetch("https://api.anthropic.com/v1/messages", {
+      method: "POST",
+      signal,
+      headers: {
+        "content-type": "application/json",
+        "x-api-key": key,
+        "anthropic-version": "2023-06-01"
+      },
+      body: JSON.stringify({ model, max_tokens: 2048, system, messages: history, stream: true })
+    });
+    if (!res.ok) {
+      throw new Error(`Błąd API (${res.status}): ${(await res.text()).slice(0, 300)}`);
+    }
+    await readSse(res, (data) => {
+      const ev = data as AnthropicEvent;
+      if (ev.type === "content_block_delta" && ev.delta?.type === "text_delta") {
+        onDelta(ev.delta.text ?? "");
+      } else if (ev.type === "error") {
+        throw new Error(ev.error?.message ?? "nieznany błąd API");
+      }
+    });
+    return;
+  }
+
+  if (settings.ai_provider === "openai" && !key) {
+    throw new Error("Brak klucza API OpenAI — uzupełnij w Ustawieniach.");
+  }
+  const isLocal = settings.ai_provider === "local";
+  const base = settings.ai_base_url?.trim() || DEFAULT_BASE_URLS[settings.ai_provider] || "";
+  const url = isLocal
+    ? `http://127.0.0.1:${LLAMA_PORT}/v1/chat/completions`
+    : settings.ai_provider === "openai"
+      ? "https://api.openai.com/v1/chat/completions"
+      : `${base}/v1/chat/completions`;
+  const res = await fetch(url, {
+    method: "POST",
+    signal,
+    headers: {
+      "content-type": "application/json",
+      ...(key && !isLocal ? { authorization: `Bearer ${key}` } : {})
+    },
+    body: JSON.stringify({
+      ...(isLocal ? {} : { model }),
+      messages: [{ role: "system", content: system }, ...history],
+      // parametry jak w trainhub: llama.cpp reuse'uje KV-cache wspólnego
+      // prefiksu między turami — wielotury odpowiadają dużo szybciej
+      ...(isLocal ? { temperature: 0.7, max_tokens: 1536, cache_prompt: true } : {}),
+      stream: true
+    })
+  });
+  if (!res.ok) {
+    throw new Error(`Błąd API (${res.status}): ${(await res.text()).slice(0, 300)}`);
+  }
+  await readSse(res, (data) => {
+    const delta = (data as OpenAiChunk).choices?.[0]?.delta?.content;
+    if (delta) onDelta(delta);
+  });
+}
--- a/src/lib/costs.ts
+++ b/src/lib/costs.ts
@@ -0,0 +1,28 @@
+import type { Cost, CostPeriod } from "./types";
+import { round2 } from "./money";
+
+export const COST_PERIOD_LABELS: Record<CostPeriod, string> = {
+  year: "rocznie",
+  month: "miesięcznie",
+  season_month: "miesięcznie w sezonie",
+  once: "jednorazowo"
+};
+
+/** Roczny wymiar pojedynczego kosztu dla danego roku. */
+export function costPerYear(cost: Cost, year: number, seasonMonthCount: number): number {
+  switch (cost.period) {
+    case "year":
+      return cost.amount;
+    case "month":
+      return cost.amount * 12;
+    case "season_month":
+      return cost.amount * seasonMonthCount;
+    case "once":
+      return cost.year === year ? cost.amount : 0;
+  }
+}
+
+/** Suma kosztów stałych w roku (bez pościeli). */
+export function totalCostsForYear(costs: Cost[], year: number, seasonMonthCount: number): number {
+  return round2(costs.reduce((sum, c) => sum + costPerYear(c, year, seasonMonthCount), 0));
+}
--- a/src/lib/dates.ts
+++ b/src/lib/dates.ts
@@ -58,6 +58,23 @@ export function formatShort(iso: string): string {
  return `${Number(iso.slice(8))}.${iso.slice(5, 7)}`;
 }

+/** Miesiące sezonu (1–12) od start do end włącznie; obsługuje sezon przez przełom roku. */
+export function seasonMonths(start: number, end: number): number[] {
+  const months: number[] = [];
+  let m = start;
+  for (let i = 0; i < 12; i++) {
+    months.push(m);
+    if (m === end) break;
+    m = m === 12 ? 1 : m + 1;
+  }
+  return months;
+}
+
+/** Liczba dni sezonu w danym roku. */
+export function daysInSeason(year: number, start: number, end: number): number {
+  return seasonMonths(start, end).reduce((sum, m) => sum + daysInMonth(year, m - 1), 0);
+}
+
 /** Liczba nocy między dwiema datami ISO (departure - arrival). */
 export function nightsBetween(arrival: string, departure: string): number {
  const a = new Date(arrival + "T00:00:00");
--- a/src/lib/db.ts
+++ b/src/lib/db.ts
@@ -2,6 +2,8 @@ import Database from "@tauri-apps/plugin-sql";
 import type {
  Cabin,
  CabinReport,
+  Cost,
+  CostInput,
  Guest,
  GuestListRow,
  Invoice,
@@ -452,7 +454,9 @@ export async function updateSettings(s: Settings): Promise<void> {
    `UPDATE settings SET
       company_name = $1, first_name = $2, last_name = $3, address = $4, nip = $5,
       bank_account = $6, bank_name = $7, issue_place = $8, default_pkwiu = $9,
-       default_vat_rate = $10, energy_price = $11
+       default_vat_rate = $10, energy_price = $11, season_start_month = $12,
+       season_end_month = $13, linen_cost = $14, ai_provider = $15, ai_api_key = $16,
+       ai_model = $17, ai_base_url = $18
     WHERE id = 1`,
    [
      s.company_name,
@@ -465,11 +469,56 @@ export async function updateSettings(s: Settings): Promise<void> {
      s.issue_place,
      s.default_pkwiu,
      s.default_vat_rate,
-      s.energy_price
+      s.energy_price,
+      s.season_start_month,
+      s.season_end_month,
+      s.linen_cost,
+      s.ai_provider,
+      s.ai_api_key,
+      s.ai_model,
+      s.ai_base_url
    ]
  );
 }

+// --- Koszty ---
+
+export async function listCosts(): Promise<Cost[]> {
+  const d = await getDb();
+  return d.select<Cost[]>("SELECT * FROM costs ORDER BY name");
+}
+
+export async function createCost(c: CostInput): Promise<void> {
+  const d = await getDb();
+  await d.execute(
+    "INSERT INTO costs (name, amount, period, year, notes) VALUES ($1, $2, $3, $4, $5)",
+    [c.name, c.amount, c.period, c.year, c.notes]
+  );
+}
+
+export async function updateCost(c: Cost): Promise<void> {
+  const d = await getDb();
+  await d.execute(
+    "UPDATE costs SET name = $1, amount = $2, period = $3, year = $4, notes = $5 WHERE id = $6",
+    [c.name, c.amount, c.period, c.year, c.notes, c.id]
+  );
+}
+
+export async function deleteCost(id: number): Promise<void> {
+  const d = await getDb();
+  await d.execute("DELETE FROM costs WHERE id = $1", [id]);
+}
+
+/** Suma kompletów pościeli (osób × pobyt) dla pobytów rozpoczętych w danym roku. */
+export async function linenSetsForYear(year: number): Promise<number> {
+  const d = await getDb();
+  const rows = await d.select<{ sets: number | null }[]>(
+    "SELECT SUM(COALESCE(num_guests, 1)) AS sets FROM reservations WHERE arrival >= $1 AND arrival < $2",
+    [`${year}-01-01`, `${year + 1}-01-01`]
+  );
+  return rows[0]?.sets ?? 0;
+}
+
 // --- Faktury ---

 export async function listInvoices(): Promise<(Invoice & { gross: number })[]> {
--- a/src/lib/llama.ts
+++ b/src/lib/llama.ts
@@ -0,0 +1,37 @@
+import { invoke } from "@tauri-apps/api/core";
+import { listen, type UnlistenFn } from "@tauri-apps/api/event";
+
+/** Port wbudowanego llama-server — musi zgadzać się z PORT w src-tauri/src/llama.rs. */
+export const LLAMA_PORT = 8123;
+
+export interface LlamaStatus {
+  installed: boolean;
+  running: boolean;
+}
+
+export interface LlamaProgress {
+  task: string;
+  progress: number | null;
+}
+
+export function llamaStatus(): Promise<LlamaStatus> {
+  return invoke<LlamaStatus>("llama_status");
+}
+
+/** Pobiera binarkę llama.cpp i model (~2,5 GB); postęp przez onLlamaProgress. */
+export function llamaDownload(): Promise<void> {
+  return invoke("llama_download");
+}
+
+/** Startuje serwer (GPU, potem fallback CPU) i czeka aż będzie gotowy. */
+export function llamaStart(): Promise<void> {
+  return invoke("llama_start");
+}
+
+export function llamaStop(): Promise<void> {
+  return invoke("llama_stop");
+}
+
+export function onLlamaProgress(handler: (p: LlamaProgress) => void): Promise<UnlistenFn> {
+  return listen<LlamaProgress>("llama-progress", (event) => handler(event.payload));
+}
--- a/src/lib/types.ts
+++ b/src/lib/types.ts
@@ -47,6 +47,8 @@ export type ReservationDialogParams =

 // --- Faktury ---

+export type AiProvider = "anthropic" | "openai" | "ollama" | "lmstudio" | "local";
+
 export interface Settings {
  id: number;
  company_name: string;
@@ -61,8 +63,33 @@ export interface Settings {
  default_vat_rate: number;
  /** Cena energii zł/kWh do rozliczania liczników */
  energy_price: number | null;
+  /** Sezon działalności: miesiące 1–12 włącznie */
+  season_start_month: number;
+  season_end_month: number;
+  /** Koszt prania/wymiany pościeli zł za komplet na osobę (na pobyt) */
+  linen_cost: number | null;
+  ai_provider: AiProvider;
+  ai_api_key: string | null;
+  ai_model: string | null;
+  ai_base_url: string | null;
 }

+// --- Koszty ---
+
+export type CostPeriod = "year" | "month" | "season_month" | "once";
+
+export interface Cost {
+  id: number;
+  name: string;
+  amount: number;
+  period: CostPeriod;
+  /** Dla period = 'once': rok, którego koszt dotyczy */
+  year: number | null;
+  notes: string | null;
+}
+
+export type CostInput = Omit<Cost, "id">;
+
 export type PaymentMethod = "CASH" | "CARD" | "CARD_CASH" | "SEND";

 export interface Invoice {
--- a/src/routes/+layout.svelte
+++ b/src/routes/+layout.svelte
@@ -9,7 +9,9 @@
    { href: "/faktury", label: "Faktury" },
    { href: "/goscie", label: "Goście" },
    { href: "/sprzatanie", label: "Sprzątanie" },
+    { href: "/koszty", label: "Koszty" },
    { href: "/raporty", label: "Raporty" },
+    { href: "/asystent", label: "Asystent" },
    { href: "/ustawienia", label: "Ustawienia" }
  ];
 </script>
@@ -95,6 +97,9 @@
  :global(select:hover:not(:focus)) {
    border-color: var(--muted);
  }
+  :global(input[type="checkbox"]) {
+    accent-color: var(--accent);
+  }

  /* --- Wspólny system przycisków --- */
  :global(.btn) {
--- a/src/routes/asystent/+page.svelte
+++ b/src/routes/asystent/+page.svelte
@@ -0,0 +1,457 @@
+<script lang="ts">
+  import { onMount } from "svelte";
+  import * as db from "$lib/db";
+  import { chat, isAiConfigured, AI_PROVIDER_LABELS, type ChatMessage } from "$lib/ai";
+  import {
+    llamaDownload,
+    llamaStart,
+    llamaStatus,
+    onLlamaProgress,
+    type LlamaStatus
+  } from "$lib/llama";
+  import type { Settings } from "$lib/types";
+
+  const HISTORY_LIMIT = 12;
+  const SUGGESTIONS = [
+    "Jak zwiększyć przychód w tym sezonie minimalnym nakładem?",
+    "Przeanalizuj obłożenie i wskaż największe luki w grafiku.",
+    "Czy moje ceny za dobę są dobrze ustawione? Co bym zyskał podnosząc je o 10%?",
+    "Które koszty najbardziej zjadają zysk i co z tym zrobić?"
+  ];
+
+  let settings = $state<Settings | null>(null);
+  let messages = $state<ChatMessage[]>([]);
+  let input = $state("");
+  let streaming = $state(false);
+  let error = $state<string | null>(null);
+  let abortController: AbortController | null = null;
+  let scrollEl: HTMLDivElement | undefined = $state();
+
+  // Stan wbudowanego modelu (llama.cpp)
+  let llama = $state<LlamaStatus | null>(null);
+  let llamaTask = $state<string | null>(null);
+  let llamaProgress = $state<number | null>(null);
+  let llamaBusy = $state(false);
+
+  onMount(() => {
+    let unlisten: (() => void) | undefined;
+    void (async () => {
+      try {
+        settings = await db.getSettings();
+        if (settings.ai_provider === "local") {
+          llama = await llamaStatus();
+        }
+        unlisten = await onLlamaProgress((p) => {
+          llamaTask = p.task;
+          llamaProgress = p.progress;
+        });
+      } catch (e) {
+        error = `Nie udało się wczytać ustawień: ${e}`;
+      }
+    })();
+    return () => unlisten?.();
+  });
+
+  let configured = $derived(settings != null && isAiConfigured(settings));
+  let isLocal = $derived(settings?.ai_provider === "local");
+
+  async function downloadModel() {
+    if (llamaBusy) return;
+    llamaBusy = true;
+    error = null;
+    try {
+      await llamaDownload();
+      llama = await llamaStatus();
+      // od razu ładujemy model — użytkownik nie musi klikać drugi raz
+      await llamaStart();
+      llama = await llamaStatus();
+      llamaTask = null;
+    } catch (e) {
+      error = String(e instanceof Error ? e.message : e);
+    } finally {
+      llamaBusy = false;
+      llamaProgress = null;
+    }
+  }
+
+  async function startModel() {
+    if (llamaBusy) return;
+    llamaBusy = true;
+    error = null;
+    try {
+      await llamaStart();
+      llama = await llamaStatus();
+      llamaTask = null;
+    } catch (e) {
+      error = String(e instanceof Error ? e.message : e);
+    } finally {
+      llamaBusy = false;
+    }
+  }
+
+  /** Dla wbudowanego modelu: dopilnuj, żeby serwer działał; rzuca przy porażce. */
+  async function ensureLocalReady(): Promise<void> {
+    llama = await llamaStatus();
+    if (!llama.installed) {
+      throw new Error("Najpierw pobierz wbudowany model (panel powyżej).");
+    }
+    if (!llama.running) {
+      await llamaStart();
+      llama = await llamaStatus();
+      llamaTask = null;
+    }
+  }
+
+  function scrollDown() {
+    requestAnimationFrame(() => {
+      scrollEl?.scrollTo({ top: scrollEl.scrollHeight });
+    });
+  }
+
+  async function send(text?: string) {
+    const content = (text ?? input).trim();
+    if (!content || streaming || !settings) return;
+    input = "";
+    error = null;
+    messages.push({ role: "user", content });
+    messages.push({ role: "assistant", content: "" });
+    const assistantIndex = messages.length - 1;
+    streaming = true;
+    abortController = new AbortController();
+    scrollDown();
+    try {
+      if (isLocal) {
+        await ensureLocalReady();
+      }
+      const history = messages
+        .slice(0, -1)
+        .slice(-HISTORY_LIMIT)
+        .map((m) => ({ role: m.role, content: m.content }));
+      await chat(
+        history,
+        settings,
+        (delta) => {
+          messages[assistantIndex].content += delta;
+          scrollDown();
+        },
+        abortController.signal
+      );
+      if (!messages[assistantIndex].content.trim()) {
+        messages[assistantIndex].content = "(pusta odpowiedź — spróbuj ponownie)";
+      }
+    } catch (e) {
+      const aborted = abortController?.signal.aborted;
+      if (aborted) {
+        if (!messages[assistantIndex].content.trim()) {
+          messages.splice(assistantIndex - 1, 2);
+        }
+      } else if (messages[assistantIndex].content.trim()) {
+        error = `Odpowiedź przerwana: ${e}`;
+      } else {
+        messages.splice(assistantIndex - 1, 2);
+        error = String(e instanceof Error ? e.message : e);
+      }
+    } finally {
+      streaming = false;
+      abortController = null;
+    }
+  }
+
+  function stop() {
+    abortController?.abort();
+  }
+
+  function reset() {
+    if (streaming) stop();
+    messages = [];
+    error = null;
+  }
+
+  function onkeydown(event: KeyboardEvent) {
+    if (event.key === "Enter" && !event.shiftKey) {
+      event.preventDefault();
+      void send();
+    }
+  }
+</script>
+
+<svelte:head>
+  <title>Słoneczko — asystent</title>
+</svelte:head>
+
+<main>
+  <header class="toolbar">
+    <h1>Asystent</h1>
+    {#if settings}
+      <span class="provider">{AI_PROVIDER_LABELS[settings.ai_provider]}</span>
+    {/if}
+    <span class="spacer"></span>
+    {#if messages.length > 0}
+      <button type="button" class="btn" onclick={reset}>Nowa rozmowa</button>
+    {/if}
+  </header>
+
+  {#if settings && !configured}
+    <div class="empty">
+      <p>Asystent nie jest jeszcze skonfigurowany.</p>
+      <p class="hint">
+        Wybierz dostawcę AI i podaj klucz API (albo wskaż lokalny serwer Ollama/LM Studio).
+      </p>
+      <a class="btn primary" href="/ustawienia">Przejdź do ustawień</a>
+    </div>
+  {:else if settings}
+    {#if isLocal && llama}
+      <div class="local-panel">
+        {#if !llama.installed}
+          <span>Wbudowany model nie jest jeszcze pobrany (Qwen3 4B, działa offline).</span>
+          <button type="button" class="btn primary" onclick={downloadModel} disabled={llamaBusy}>
+            Pobierz model (~2,5 GB)
+          </button>
+        {:else if llama.running}
+          <span class="ok-chip">● Model działa</span>
+          <span class="muted">Qwen3 4B — lokalnie, bez wysyłania danych</span>
+        {:else}
+          <span>Model zainstalowany.</span>
+          <button type="button" class="btn" onclick={startModel} disabled={llamaBusy}>
+            Uruchom teraz
+          </button>
+          <span class="muted">uruchomi się też sam przy pierwszej wiadomości</span>
+        {/if}
+        {#if llamaTask}
+          <div class="task">
+            <span>{llamaTask}</span>
+            {#if llamaProgress != null}
+              <div class="bar">
+                <div class="fill" style="width: {Math.round(llamaProgress * 100)}%"></div>
+              </div>
+            {/if}
+          </div>
+        {/if}
+      </div>
+    {/if}
+    <div class="chat" bind:this={scrollEl}>
+      {#if messages.length === 0}
+        <div class="welcome">
+          <p>
+            Znam Twój grafik, cennik, obłożenie i koszty — przy każdym pytaniu dostaję ich aktualny
+            obraz. Zapytaj np.:
+          </p>
+          <div class="suggestions">
+            {#each SUGGESTIONS as s (s)}
+              <button type="button" class="suggestion" onclick={() => void send(s)}>{s}</button>
+            {/each}
+          </div>
+        </div>
+      {/if}
+      {#each messages as message, i (i)}
+        <div class="bubble {message.role}">
+          {#if message.content}
+            {message.content}
+          {:else if streaming && i === messages.length - 1}
+            <span class="typing">Myślę…</span>
+          {/if}
+        </div>
+      {/each}
+    </div>
+
+    {#if error}
+      <p class="error">{error}</p>
+    {/if}
+
+    <form
+      class="composer"
+      onsubmit={(e) => {
+        e.preventDefault();
+        void send();
+      }}
+    >
+      <textarea
+        rows="2"
+        bind:value={input}
+        {onkeydown}
+        placeholder="Zapytaj o obłożenie, ceny, koszty… (Enter wysyła, Shift+Enter to nowa linia)"
+        disabled={streaming}
+      ></textarea>
+      {#if streaming}
+        <button type="button" class="btn danger" onclick={stop}>Stop</button>
+      {:else}
+        <button type="submit" class="btn primary" disabled={!input.trim()}>Wyślij</button>
+      {/if}
+    </form>
+  {/if}
+</main>
+
+<style>
+  main {
+    display: flex;
+    flex-direction: column;
+    height: calc(100vh - 46px);
+    max-width: 860px;
+    margin: 0 auto;
+    padding: 14px 16px;
+  }
+  .toolbar {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    margin-bottom: 12px;
+  }
+  h1 {
+    margin: 0;
+    font-size: 18px;
+  }
+  .provider {
+    font-size: 12px;
+    color: var(--muted);
+    background: var(--surface);
+    border: 1px solid var(--border);
+    border-radius: 12px;
+    padding: 2px 10px;
+  }
+  .spacer {
+    flex: 1;
+  }
+  .empty {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    gap: 10px;
+    padding: 60px 20px;
+    border: 1px dashed var(--border);
+    border-radius: 10px;
+    color: var(--muted);
+  }
+  .empty .btn {
+    text-decoration: none;
+  }
+  .local-panel {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+    flex-wrap: wrap;
+    padding: 10px 14px;
+    margin-bottom: 10px;
+    background: var(--surface);
+    border: 1px solid var(--border);
+    border-radius: 10px;
+    font-size: 13px;
+  }
+  .ok-chip {
+    color: var(--ok);
+    font-weight: 600;
+  }
+  .muted {
+    color: var(--muted);
+    font-size: 12px;
+  }
+  .task {
+    flex-basis: 100%;
+    display: flex;
+    flex-direction: column;
+    gap: 6px;
+    font-size: 12px;
+    color: var(--muted);
+  }
+  .bar {
+    height: 6px;
+    border-radius: 3px;
+    background: var(--bg);
+    overflow: hidden;
+  }
+  .fill {
+    height: 100%;
+    background: var(--accent);
+    border-radius: 3px;
+    transition: width 0.2s ease;
+  }
+  .chat {
+    flex: 1;
+    overflow-y: auto;
+    display: flex;
+    flex-direction: column;
+    gap: 10px;
+    padding: 14px;
+    background: var(--surface);
+    border: 1px solid var(--border);
+    border-radius: 10px;
+    margin-bottom: 10px;
+  }
+  .welcome {
+    color: var(--muted);
+    font-size: 13px;
+  }
+  .suggestions {
+    display: flex;
+    flex-direction: column;
+    align-items: flex-start;
+    gap: 8px;
+    margin-top: 10px;
+  }
+  .suggestion {
+    font: inherit;
+    font-size: 13px;
+    text-align: left;
+    padding: 8px 12px;
+    border-radius: 9px;
+    border: 1px solid var(--border);
+    background: var(--bg);
+    color: var(--text);
+    cursor: pointer;
+  }
+  .suggestion:hover {
+    border-color: var(--accent);
+    color: var(--accent);
+  }
+  .bubble {
+    max-width: 85%;
+    padding: 9px 13px;
+    border-radius: 12px;
+    font-size: 14px;
+    line-height: 1.55;
+    white-space: pre-wrap;
+    overflow-wrap: break-word;
+  }
+  .bubble.user {
+    align-self: flex-end;
+    background: var(--accent);
+    color: #fff;
+    border-bottom-right-radius: 4px;
+  }
+  .bubble.assistant {
+    align-self: flex-start;
+    background: var(--bg);
+    border: 1px solid var(--border);
+    border-bottom-left-radius: 4px;
+  }
+  .typing {
+    color: var(--muted);
+    font-style: italic;
+  }
+  .error {
+    margin: 0 0 8px;
+    font-size: 13px;
+    color: var(--danger);
+  }
+  .composer {
+    display: flex;
+    gap: 8px;
+    align-items: flex-end;
+  }
+  textarea {
+    flex: 1;
+    font: inherit;
+    font-size: 14px;
+    color: var(--text);
+    background: var(--surface);
+    border: 1px solid var(--border);
+    border-radius: 9px;
+    padding: 9px 12px;
+    resize: none;
+  }
+  textarea:disabled {
+    opacity: 0.6;
+  }
+  .hint {
+    font-size: 12px;
+  }
+</style>
--- a/src/routes/koszty/+page.svelte
+++ b/src/routes/koszty/+page.svelte
@@ -0,0 +1,371 @@
+<script lang="ts">
+  import { onMount } from "svelte";
+  import * as db from "$lib/db";
+  import { isoDate, seasonMonths } from "$lib/dates";
+  import { formatMoney, round2 } from "$lib/money";
+  import { COST_PERIOD_LABELS, costPerYear, totalCostsForYear } from "$lib/costs";
+  import type { Cost, CostPeriod, RevenueStats, Settings } from "$lib/types";
+
+  let year = $state(new Date().getFullYear());
+  let settings = $state<Settings | null>(null);
+  let costs = $state<Cost[]>([]);
+  let yearStats = $state<RevenueStats | null>(null);
+  let linenSets = $state(0);
+  let error = $state<string | null>(null);
+
+  let newCost = $state<{ name: string; amount: number | null; period: CostPeriod; year: number | null }>({
+    name: "",
+    amount: null,
+    period: "year",
+    year: null
+  });
+
+  let seasonMonthCount = $derived(
+    settings ? seasonMonths(settings.season_start_month, settings.season_end_month).length : 12
+  );
+  let fixedCosts = $derived(totalCostsForYear(costs, year, seasonMonthCount));
+  let linenTotal = $derived(round2(linenSets * (settings?.linen_cost ?? 0)));
+  let totalCosts = $derived(round2(fixedCosts + linenTotal));
+  let profitPotential = $derived(
+    yearStats ? round2(yearStats.revenue_total - totalCosts) : null
+  );
+  let profitConfirmed = $derived(
+    yearStats ? round2(yearStats.revenue_confirmed - totalCosts) : null
+  );
+
+  async function reload() {
+    error = null;
+    try {
+      [settings, costs, yearStats, linenSets] = await Promise.all([
+        db.getSettings(),
+        db.listCosts(),
+        db.revenueStats(isoDate(year, 0, 1), isoDate(year + 1, 0, 1)),
+        db.linenSetsForYear(year)
+      ]);
+    } catch (e) {
+      error = `Nie udało się wczytać danych: ${e}`;
+    }
+  }
+
+  onMount(() => {
+    void reload();
+  });
+
+  function changeYear(delta: number) {
+    year += delta;
+    void reload();
+  }
+
+  async function saveLinen() {
+    if (!settings) return;
+    try {
+      await db.updateSettings({
+        ...settings,
+        linen_cost:
+          settings.linen_cost == null || Number.isNaN(settings.linen_cost)
+            ? null
+            : settings.linen_cost
+      });
+    } catch (e) {
+      error = `Nie udało się zapisać: ${e}`;
+    }
+  }
+
+  async function addCost(event: SubmitEvent) {
+    event.preventDefault();
+    error = null;
+    if (!newCost.name.trim() || newCost.amount == null || Number.isNaN(newCost.amount)) return;
+    try {
+      await db.createCost({
+        name: newCost.name.trim(),
+        amount: newCost.amount,
+        period: newCost.period,
+        year: newCost.period === "once" ? (newCost.year ?? year) : null,
+        notes: null
+      });
+      newCost = { name: "", amount: null, period: "year", year: null };
+      await reload();
+    } catch (e) {
+      error = `Nie udało się dodać kosztu: ${e}`;
+    }
+  }
+
+  async function persistCost(cost: Cost) {
+    if (!cost.name.trim() || Number.isNaN(cost.amount)) return;
+    error = null;
+    try {
+      await db.updateCost({
+        ...cost,
+        name: cost.name.trim(),
+        year: cost.period === "once" ? (cost.year ?? year) : null
+      });
+      await reload();
+    } catch (e) {
+      error = `Nie udało się zapisać kosztu: ${e}`;
+    }
+  }
+
+  async function removeCost(cost: Cost) {
+    if (!confirm(`Usunąć koszt „${cost.name}"?`)) return;
+    try {
+      await db.deleteCost(cost.id);
+      await reload();
+    } catch (e) {
+      error = `Nie udało się usunąć kosztu: ${e}`;
+    }
+  }
+</script>
+
+<svelte:head>
+  <title>Słoneczko — koszty</title>
+</svelte:head>
+
+<main>
+  <header class="toolbar">
+    <h1>Koszty</h1>
+    <span class="spacer"></span>
+    <button type="button" class="btn icon" onclick={() => changeYear(-1)} aria-label="Poprzedni rok">‹</button>
+    <span class="year">{year}</span>
+    <button type="button" class="btn icon" onclick={() => changeYear(1)} aria-label="Następny rok">›</button>
+  </header>
+
+  {#if error}
+    <p class="error">{error}</p>
+  {/if}
+
+  {#if settings && yearStats}
+    <div class="cards">
+      <div class="card">
+        <span class="label">Przychód potwierdzony</span>
+        <span class="value">{formatMoney(yearStats.revenue_confirmed)} zł</span>
+      </div>
+      <div class="card">
+        <span class="label">Koszty razem</span>
+        <span class="value">{formatMoney(totalCosts)} zł</span>
+      </div>
+      <div class="card" class:neg={profitConfirmed != null && profitConfirmed < 0}>
+        <span class="label">Zysk (potwierdzony − koszty)</span>
+        <span class="value">{formatMoney(profitConfirmed ?? 0)} zł</span>
+      </div>
+      <div class="card">
+        <span class="label">Zysk przy pełnym potencjale</span>
+        <span class="value">{formatMoney(profitPotential ?? 0)} zł</span>
+      </div>
+    </div>
+
+    <section>
+      <h2>Pościel</h2>
+      <div class="linen">
+        <label>
+          Koszt kompletu na osobę (zł)
+          <input
+            type="number"
+            min="0"
+            step="0.01"
+            bind:value={settings.linen_cost}
+            onchange={saveLinen}
+          />
+        </label>
+        <p class="calc">
+          W {year}: {linenSets} kompletów (osoby × pobyty)
+          {#if settings.linen_cost != null}
+            × {formatMoney(settings.linen_cost)} zł = <strong>{formatMoney(linenTotal)} zł</strong>
+          {/if}
+        </p>
+      </div>
+    </section>
+
+    <section>
+      <h2>Koszty stałe</h2>
+      {#if costs.length > 0}
+        <div class="list">
+          <span class="lh">Nazwa</span>
+          <span class="lh">Kwota (zł)</span>
+          <span class="lh">Okres</span>
+          <span class="lh">Rok</span>
+          <span class="lh num">W {year}</span>
+          <span class="lh"></span>
+          {#each costs as cost (cost.id)}
+            <input type="text" bind:value={cost.name} onchange={() => persistCost(cost)} aria-label="Nazwa kosztu" />
+            <input type="number" min="0" step="0.01" bind:value={cost.amount} onchange={() => persistCost(cost)} aria-label="Kwota" />
+            <select bind:value={cost.period} onchange={() => persistCost(cost)} aria-label="Okres">
+              {#each Object.entries(COST_PERIOD_LABELS) as [value, label] (value)}
+                <option {value}>{label}</option>
+              {/each}
+            </select>
+            {#if cost.period === "once"}
+              <input type="number" bind:value={cost.year} onchange={() => persistCost(cost)} aria-label="Rok kosztu" />
+            {:else}
+              <span class="muted">—</span>
+            {/if}
+            <span class="num">{formatMoney(costPerYear(cost, year, seasonMonthCount))} zł</span>
+            <button type="button" class="btn sm danger" onclick={() => removeCost(cost)}>Usuń</button>
+          {/each}
+        </div>
+        <p class="sum">Koszty stałe razem: <strong>{formatMoney(fixedCosts)} zł</strong></p>
+      {:else}
+        <p class="hint">
+          Nie ma jeszcze żadnych kosztów — dodaj np. wodę, śmieci, ubezpieczenie, podatek od
+          nieruchomości czy naprawy.
+        </p>
+      {/if}
+
+      <form class="add" onsubmit={addCost}>
+        <input type="text" bind:value={newCost.name} placeholder="np. Ubezpieczenie" required />
+        <input type="number" min="0" step="0.01" bind:value={newCost.amount} placeholder="zł" required />
+        <select bind:value={newCost.period}>
+          {#each Object.entries(COST_PERIOD_LABELS) as [value, label] (value)}
+            <option {value}>{label}</option>
+          {/each}
+        </select>
+        {#if newCost.period === "once"}
+          <input type="number" bind:value={newCost.year} placeholder={String(year)} aria-label="Rok kosztu" />
+        {:else}
+          <span class="muted">—</span>
+        {/if}
+        <button type="submit" class="btn">Dodaj</button>
+      </form>
+      <p class="hint">
+        „Miesięcznie w sezonie" mnoży kwotę przez {seasonMonthCount}
+        {seasonMonthCount === 1 ? "miesiąc" : seasonMonthCount < 5 ? "miesiące" : "miesięcy"} sezonu.
+        Jednorazowe koszty (np. naprawa dachu) przypisz do konkretnego roku.
+      </p>
+    </section>
+  {/if}
+</main>
+
+<style>
+  main {
+    padding: 14px 16px;
+    max-width: 860px;
+  }
+  .toolbar {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    margin-bottom: 14px;
+  }
+  h1 {
+    margin: 0;
+    font-size: 18px;
+  }
+  .spacer {
+    flex: 1;
+  }
+  .year {
+    min-width: 60px;
+    text-align: center;
+    font-size: 16px;
+    font-weight: 600;
+  }
+  .error {
+    color: var(--danger);
+  }
+  .cards {
+    display: grid;
+    grid-template-columns: repeat(4, 1fr);
+    gap: 10px;
+    margin-bottom: 14px;
+  }
+  .card {
+    display: flex;
+    flex-direction: column;
+    gap: 4px;
+    background: var(--surface);
+    border: 1px solid var(--border);
+    border-radius: 10px;
+    padding: 12px 14px;
+  }
+  .card .label {
+    font-size: 11px;
+    color: var(--muted);
+  }
+  .card .value {
+    font-size: 20px;
+    font-weight: 600;
+  }
+  .card.neg .value {
+    color: var(--danger);
+  }
+  section {
+    background: var(--surface);
+    border: 1px solid var(--border);
+    border-radius: 10px;
+    padding: 14px 16px;
+    margin-bottom: 14px;
+  }
+  h2 {
+    margin: 0 0 12px;
+    font-size: 14px;
+  }
+  .linen {
+    display: flex;
+    align-items: flex-end;
+    gap: 18px;
+    flex-wrap: wrap;
+  }
+  .linen label {
+    display: flex;
+    flex-direction: column;
+    gap: 4px;
+    font-size: 12px;
+    color: var(--muted);
+  }
+  .calc {
+    margin: 0 0 6px;
+    font-size: 13px;
+    color: var(--muted);
+  }
+  .calc strong {
+    color: var(--text);
+  }
+  input,
+  select {
+    font: inherit;
+    font-size: 14px;
+    color: var(--text);
+    background: var(--bg);
+    border: 1px solid var(--border);
+    border-radius: 6px;
+    padding: 7px 9px;
+    min-width: 0;
+  }
+  .list,
+  .add {
+    display: grid;
+    grid-template-columns: 1.4fr 100px 170px 80px 110px auto;
+    gap: 6px 8px;
+    align-items: center;
+  }
+  .add {
+    margin-top: 12px;
+    padding-top: 12px;
+    border-top: 1px solid var(--border);
+  }
+  .lh {
+    font-size: 11px;
+    color: var(--muted);
+  }
+  .num {
+    text-align: right;
+    font-size: 13px;
+  }
+  .muted {
+    color: var(--muted);
+    text-align: center;
+  }
+  .sum {
+    margin: 10px 0 0;
+    font-size: 13px;
+    color: var(--muted);
+    text-align: right;
+  }
+  .sum strong {
+    color: var(--text);
+  }
+  .hint {
+    margin: 10px 0 0;
+    font-size: 12px;
+    color: var(--muted);
+  }
+</style>
--- a/src/routes/raporty/+page.svelte
+++ b/src/routes/raporty/+page.svelte
@@ -1,21 +1,36 @@
 <script lang="ts">
  import { onMount } from "svelte";
  import * as db from "$lib/db";
-  import { daysInMonth, isoDate, MONTH_NAMES } from "$lib/dates";
+  import { daysInMonth, daysInSeason, isoDate, MONTH_NAMES, seasonMonths } from "$lib/dates";
  import { formatMoney } from "$lib/money";
  import { csvNumber, saveCsv, toCsv } from "$lib/csv";
-  import type { Cabin, CabinReport, RevenueStats } from "$lib/types";
+  import type { Cabin, CabinReport, RevenueStats, Settings } from "$lib/types";

  let year = $state(new Date().getFullYear());
  let cabins = $state<Cabin[]>([]);
+  let settings = $state<Settings | null>(null);
  let yearStats = $state<RevenueStats | null>(null);
  let cabinRows = $state<CabinReport[]>([]);
  let monthRows = $state<RevenueStats[]>([]);
  let loading = $state(true);
  let error = $state<string | null>(null);

-  let isLeap = $derived(new Date(year, 1, 29).getDate() === 29);
-  let daysInYear = $derived(isLeap ? 366 : 365);
+  let seasonMonthList = $derived(
+    settings ? seasonMonths(settings.season_start_month, settings.season_end_month) : []
+  );
+  /** Mianownik obłożenia: dni sezonu (nie całego roku). */
+  let seasonDays = $derived(
+    settings ? daysInSeason(year, settings.season_start_month, settings.season_end_month) : 365
+  );
+  let seasonLabel = $derived(
+    settings
+      ? `${MONTH_NAMES[settings.season_start_month - 1].toLowerCase()}–${MONTH_NAMES[settings.season_end_month - 1].toLowerCase()}`
+      : ""
+  );
+
+  function inSeason(monthIndex: number): boolean {
+    return seasonMonthList.includes(monthIndex + 1);
+  }

  async function reload() {
    loading = true;
@@ -27,12 +42,14 @@
        from: isoDate(year, m, 1),
        to: m === 11 ? isoDate(year + 1, 0, 1) : isoDate(year, m + 1, 1)
      }));
-      const [c, ys, cr, ...months] = await Promise.all([
+      const [s, c, ys, cr, ...months] = await Promise.all([
+        db.getSettings(),
        db.listCabins(),
        db.revenueStats(from, to),
        db.cabinReports(from, to),
        ...monthRanges.map((r) => db.revenueStats(r.from, r.to))
      ]);
+      settings = s;
      cabins = c;
      yearStats = ys;
      cabinRows = cr;
@@ -70,15 +87,18 @@
    error = null;
    exportInfo = null;
    try {
-      const rows: (string | number | null)[][] = [[`Raport ${year}`], []];
+      const rows: (string | number | null)[][] = [
+        [`Raport ${year} (sezon ${seasonLabel}, ${seasonDays} dni)`],
+        []
+      ];
      rows.push(["Wg domków"]);
-      rows.push(["Domek", "Doby", "Obłożenie %", "Przychód", "Przychód potwierdzony"]);
+      rows.push(["Domek", "Doby", "Obłożenie % (sezon)", "Przychód", "Przychód potwierdzony"]);
      for (const cabin of cabins) {
        const row = cabinRows.find((r) => r.cabin_id === cabin.id);
        rows.push([
          cabin.name,
          Math.round(row?.nights_total ?? 0),
-          Math.round(((row?.nights_total ?? 0) / daysInYear) * 100),
+          seasonDays > 0 ? Math.round(((row?.nights_total ?? 0) / seasonDays) * 100) : 0,
          csvNumber(row?.revenue_total ?? 0),
          csvNumber(row?.revenue_confirmed ?? 0)
        ]);
@@ -134,8 +154,8 @@
        <span class="value">{Math.round(yearStats.nights_total)}</span>
      </div>
      <div class="card">
-        <span class="label">Obłożenie</span>
-        <span class="value">{occupancy(yearStats.nights_total, cabins.length * daysInYear)}</span>
+        <span class="label">Obłożenie (sezon {seasonLabel})</span>
+        <span class="value">{occupancy(yearStats.nights_total, cabins.length * seasonDays)}</span>
      </div>
      <div class="card">
        <span class="label">Przychód potencjalny</span>
@@ -190,7 +210,7 @@
              <tr>
                <td>{cabin.name}</td>
                <td class="num">{row ? Math.round(row.nights_total) : 0}</td>
-                <td class="num">{occupancy(row?.nights_total ?? 0, daysInYear)}</td>
+                <td class="num">{occupancy(row?.nights_total ?? 0, seasonDays)}</td>
                <td class="num">{formatMoney(row?.revenue_total ?? 0)} zł</td>
              </tr>
            {/each}
@@ -211,8 +231,8 @@
          </thead>
          <tbody>
            {#each monthRows as m, i (i)}
-              <tr>
-                <td>{MONTH_NAMES[i]}</td>
+              <tr class:off-season={!inSeason(i)}>
+                <td>{MONTH_NAMES[i]}{#if !inSeason(i)}<span class="off"> · poza sezonem</span>{/if}</td>
                <td class="num">{Math.round(m.nights_total)}</td>
                <td class="num">{occupancy(m.nights_total, cabins.length * daysInMonth(year, i))}</td>
                <td class="num">{formatMoney(m.revenue_total)} zł</td>
@@ -220,6 +240,7 @@
            {/each}
          </tbody>
        </table>
+        <p class="hint">Obłożenie roczne i per domek liczone dla sezonu ({seasonLabel}, {seasonDays} dni).</p>
      </section>
    </div>
  {:else if loading}
@@ -367,4 +388,11 @@
  .num {
    text-align: right;
  }
+  tr.off-season td {
+    color: var(--muted);
+  }
+  .off {
+    font-size: 11px;
+    color: var(--muted);
+  }
 </style>
--- a/src/routes/sprzatanie/+page.svelte
+++ b/src/routes/sprzatanie/+page.svelte
@@ -1,7 +1,7 @@
 <script lang="ts">
  import { onMount } from "svelte";
  import * as db from "$lib/db";
-  import { addDays, formatShort, todayISO } from "$lib/dates";
+  import { addDays, formatShort, todayISO, weekdayShort } from "$lib/dates";
  import type { Cabin, Reservation } from "$lib/types";

  const DAYS_AHEAD = 14;
@@ -20,6 +20,7 @@
  let error = $state<string | null>(null);

  const today = todayISO();
+  const tomorrow = addDays(today, 1);

  async function reload() {
    loading = true;
@@ -68,10 +69,10 @@
    return cabins.find((c) => c.id === id)?.name ?? `Domek #${id}`;
  }

-  function dayLabel(iso: string): string {
-    const weekday = new Date(iso + "T00:00:00").toLocaleDateString("pl-PL", { weekday: "long" });
-    const prefix = iso === today ? "Dziś — " : iso === addDays(today, 1) ? "Jutro — " : "";
-    return `${prefix}${weekday}, ${formatShort(iso)}`;
+  function dayTag(iso: string): string {
+    if (iso === today) return "dziś";
+    if (iso === tomorrow) return "jutro";
+    return weekdayShort(iso);
  }

  function hasSameDayArrival(r: Reservation): boolean {
@@ -110,7 +111,7 @@
 <main>
  <header class="toolbar">
    <h1>Sprzątanie</h1>
-    <span class="hint">wyjazdy z najbliższych {DAYS_AHEAD} dni</span>
+    <span class="hint">wyjazdy i przygotowania z najbliższych {DAYS_AHEAD} dni</span>
  </header>

  {#if error}
@@ -118,8 +119,12 @@
  {/if}

  {#if overdue.length > 0}
-    <section class="overdue">
-      <h2>Zaległe</h2>
+    <div class="day overdue">
+      <div class="datebox">
+        <span class="num">!</span>
+        <span class="wd">zaległe</span>
+      </div>
+      <div class="card">
        {#each overdue as r (r.id)}
          <label class="task">
            <input
@@ -127,11 +132,15 @@
              checked={r.cleaned}
              onchange={(e) => toggleCleaned(r, e.currentTarget.checked)}
            />
+            <span class="info">
              <span class="cabin">{cabinName(r.cabin_id)}</span>
-          <span class="muted">wyjazd {formatShort(r.departure)} · {r.guest_name}</span>
+              <span class="sub">wyjazd {formatShort(r.departure)} · {r.guest_name}</span>
+            </span>
+            <span class="badge overdue-badge">do nadrobienia</span>
          </label>
        {/each}
-    </section>
+      </div>
+    </div>
  {/if}

  {#if !loading && byDay.length === 0 && overdue.length === 0}
@@ -141,49 +150,58 @@
  {/if}

  {#each byDay as [day, tasks] (day)}
-    <section class:today={day === today}>
-      <h2>{dayLabel(day)}</h2>
+    <div class="day" class:today={day === today}>
+      <div class="datebox" title={day}>
+        <span class="num">{Number(day.slice(8))}</span>
+        <span class="wd">{dayTag(day)}</span>
+      </div>
+      <div class="card">
        {#each tasks as task (`${task.kind}-${task.r.id}`)}
          {#if task.kind === "cleaning"}
-          <label class="task">
+            <label class="task" class:done={task.r.cleaned}>
              <input
                type="checkbox"
                checked={task.r.cleaned}
                onchange={(e) => toggleCleaned(task.r, e.currentTarget.checked)}
              />
-            <span class="cabin" class:done={task.r.cleaned}>{cabinName(task.r.cabin_id)}</span>
-            <span class="muted">po pobycie: {task.r.guest_name}</span>
+              <span class="info">
+                <span class="cabin">{cabinName(task.r.cabin_id)}</span>
+                <span class="sub">posprzątać po pobycie: {task.r.guest_name}</span>
+              </span>
              {#if hasSameDayArrival(task.r)}
-              <span class="urgent">przyjazd tego samego dnia</span>
+                <span class="badge urgent">przyjazd tego samego dnia</span>
              {/if}
            </label>
          {:else}
-          <label class="task">
+            <label class="task" class:done={task.r.prepared}>
              <input
                type="checkbox"
                checked={task.r.prepared}
                onchange={(e) => togglePrepared(task.r, e.currentTarget.checked)}
              />
-            <span class="cabin" class:done={task.r.prepared}>{cabinName(task.r.cabin_id)}</span>
-            <span class="muted">przygotować — przyjeżdża: {task.r.guest_name}</span>
-            <span class="prep">pierwszy gość w domku</span>
+              <span class="info">
+                <span class="cabin">{cabinName(task.r.cabin_id)}</span>
+                <span class="sub">przygotować — przyjeżdża: {task.r.guest_name}</span>
+              </span>
+              <span class="badge prep">pierwszy gość</span>
            </label>
          {/if}
        {/each}
-    </section>
+      </div>
+    </div>
  {/each}
 </main>

 <style>
  main {
    padding: 14px 16px;
-    max-width: 640px;
+    max-width: 680px;
  }
  .toolbar {
    display: flex;
    align-items: baseline;
    gap: 12px;
-    margin-bottom: 14px;
+    margin-bottom: 16px;
  }
  h1 {
    margin: 0;
@@ -203,79 +221,128 @@
    border-radius: 10px;
    color: var(--muted);
  }
-  section {
-    background: var(--surface);
-    border: 1px solid var(--border);
-    border-radius: 10px;
-    padding: 12px 14px;
+
+  .day {
+    display: grid;
+    grid-template-columns: 56px minmax(0, 1fr);
+    gap: 12px;
+    align-items: start;
    margin-bottom: 12px;
  }
-  section.today {
+  .datebox {
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    height: 56px;
+    background: var(--surface);
+    border: 1px solid var(--border);
+    border-radius: 12px;
+    box-shadow: 0 1px 3px rgb(0 0 0 / 0.05);
+  }
+  .datebox .num {
+    font-size: 20px;
+    font-weight: 700;
+    line-height: 1.1;
+  }
+  .datebox .wd {
+    font-size: 11px;
+    color: var(--muted);
+  }
+  .day.today .datebox {
+    background: var(--today);
    border-color: var(--accent);
  }
-  section.overdue {
+  .day.today .datebox .num,
+  .day.today .datebox .wd {
+    color: var(--accent);
+  }
+  .day.overdue .datebox {
    border-color: var(--danger);
  }
-  section.overdue h2 {
+  .day.overdue .datebox .num,
+  .day.overdue .datebox .wd {
    color: var(--danger);
  }
-  h2 {
-    margin: 0 0 8px;
-    font-size: 13px;
-    font-weight: 600;
+  .day.overdue .card {
+    border-color: var(--danger);
  }
-  h2::first-letter {
-    text-transform: uppercase;
+
+  .card {
+    background: var(--surface);
+    border: 1px solid var(--border);
+    border-radius: 12px;
+    overflow: hidden;
+    box-shadow: 0 1px 3px rgb(0 0 0 / 0.05);
  }
+  .day.today .card {
+    border-color: var(--accent);
+  }
+
  .task {
    display: flex;
    align-items: center;
-    gap: 10px;
-    padding: 6px 4px;
-    border-top: 1px solid var(--border);
-    font-size: 14px;
+    gap: 12px;
+    padding: 10px 14px;
    cursor: pointer;
+    transition: background 0.12s ease;
+  }
+  .task + .task {
+    border-top: 1px solid var(--border);
+  }
+  .task:hover {
+    background: var(--bg);
  }
  .task input {
-    width: 17px;
-    height: 17px;
+    width: 18px;
+    height: 18px;
    flex: none;
+    margin: 0;
    cursor: pointer;
  }
+  .info {
+    display: flex;
+    flex-direction: column;
+    gap: 1px;
+    min-width: 0;
+    flex: 1;
+  }
  .cabin {
    font-weight: 600;
-    min-width: 110px;
+    font-size: 14px;
  }
-  .cabin.done {
-    text-decoration: line-through;
-    color: var(--muted);
-    font-weight: 400;
-  }
-  .muted {
-    color: var(--muted);
+  .sub {
    font-size: 12px;
+    color: var(--muted);
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
  }
-  .urgent {
-    margin-left: auto;
+  .task.done {
+    opacity: 0.55;
+  }
+  .task.done .cabin {
+    text-decoration: line-through;
+    font-weight: 400;
+  }
+
+  .badge {
    flex: none;
    font-size: 11px;
    font-weight: 600;
+    border-radius: 20px;
+    padding: 3px 10px;
+  }
+  .badge.urgent {
    color: var(--warn-text);
    background: var(--bar-option-bg);
-    border-radius: 5px;
-    padding: 2px 8px;
  }
-  .prep {
-    margin-left: auto;
-    flex: none;
-    font-size: 11px;
-    font-weight: 600;
+  .badge.prep {
    color: var(--bar-confirmed-text);
    background: var(--bar-confirmed-bg);
-    border-radius: 5px;
-    padding: 2px 8px;
+  }
+  .badge.overdue-badge {
+    color: var(--danger);
+    background: color-mix(in srgb, var(--danger) 12%, var(--surface));
  }
 </style>
--- a/src/routes/ustawienia/+page.svelte
+++ b/src/routes/ustawienia/+page.svelte
@@ -2,8 +2,9 @@
  import { onMount } from "svelte";
  import { save as saveDialog } from "@tauri-apps/plugin-dialog";
  import * as db from "$lib/db";
-  import { todayISO } from "$lib/dates";
-  import type { Cabin, PriceSeason, Settings } from "$lib/types";
+  import { MONTH_NAMES, todayISO } from "$lib/dates";
+  import { AI_PROVIDER_LABELS, DEFAULT_BASE_URLS, DEFAULT_MODELS, providerNeedsKey } from "$lib/ai";
+  import type { AiProvider, Cabin, PriceSeason, Settings } from "$lib/types";

  let settings = $state<Settings | null>(null);
  let cabins = $state<Cabin[]>([]);
@@ -116,7 +117,10 @@
        energy_price:
          settings.energy_price == null || Number.isNaN(settings.energy_price)
            ? null
-            : settings.energy_price
+            : settings.energy_price,
+        ai_api_key: settings.ai_api_key?.trim() || null,
+        ai_model: settings.ai_model?.trim() || null,
+        ai_base_url: settings.ai_base_url?.trim() || null
      });
      savedFlash = true;
      setTimeout(() => (savedFlash = false), 2500);
@@ -201,6 +205,81 @@
        </p>
      </section>

+      <section>
+        <h2>Sezon działalności</h2>
+        <div class="grid2">
+          <label>
+            Od miesiąca
+            <select bind:value={settings.season_start_month}>
+              {#each MONTH_NAMES as name, i (i)}
+                <option value={i + 1}>{name}</option>
+              {/each}
+            </select>
+          </label>
+          <label>
+            Do miesiąca (włącznie)
+            <select bind:value={settings.season_end_month}>
+              {#each MONTH_NAMES as name, i (i)}
+                <option value={i + 1}>{name}</option>
+              {/each}
+            </select>
+          </label>
+        </div>
+        <p class="hint">
+          Obłożenie w raportach i podpowiedzi asystenta liczone są tylko dla miesięcy sezonu.
+        </p>
+      </section>
+
+      <section>
+        <h2>Asystent AI</h2>
+        <div class="grid2">
+          <label>
+            Dostawca
+            <select bind:value={settings.ai_provider}>
+              {#each Object.entries(AI_PROVIDER_LABELS) as [value, label] (value)}
+                <option {value}>{label}</option>
+              {/each}
+            </select>
+          </label>
+          {#if settings.ai_provider !== "local"}
+            <label>
+              Model
+              <input
+                type="text"
+                bind:value={settings.ai_model}
+                placeholder={DEFAULT_MODELS[settings.ai_provider]}
+              />
+            </label>
+          {/if}
+          {#if providerNeedsKey(settings.ai_provider)}
+            <label class="wide">
+              Klucz API
+              <input type="password" bind:value={settings.ai_api_key} placeholder="sk-…" />
+            </label>
+          {:else if settings.ai_provider !== "local"}
+            <label class="wide">
+              Adres serwera
+              <input
+                type="text"
+                bind:value={settings.ai_base_url}
+                placeholder={DEFAULT_BASE_URLS[settings.ai_provider as AiProvider] ?? ""}
+              />
+            </label>
+          {/if}
+        </div>
+        {#if settings.ai_provider === "local"}
+          <p class="hint">
+            Wbudowany model ({DEFAULT_MODELS.local}) działa w całości na tym komputerze — bez
+            klucza API i internetu. Pliki (~2,5 GB) pobierzesz w zakładce „Asystent".
+          </p>
+        {:else}
+          <p class="hint">
+            Asystent w zakładce „Asystent" otrzymuje przy każdej rozmowie aktualne dane o obłożeniu,
+            cenniku i kosztach. Klucz API jest przechowywany lokalnie w bazie aplikacji.
+          </p>
+        {/if}
+      </section>
+
      <div class="actions">
        {#if savedFlash}<span class="saved">Zapisano</span>{/if}
        <button type="submit" class="btn primary">Zapisz ustawienia</button>