feat: persist push subscriptions in sqlite

.env.example

@@ -3,6 +3,7 @@ WEB_PUSH_VAPID_PRIVATE_KEY=
 WEB_PUSH_VAPID_SUBJECT=mailto:admin@example.com
 NOTIFICATIONS_CRON_SECRET=
 WTR_APP_URL=http://127.0.0.1:3000
+WTR_DATABASE_PATH=./data/wtr.sqlite
 NOTIFICATIONS_WARNING_INTERVAL_MINUTES=5
 NOTIFICATIONS_MORNING_BRIEF_TIME=07:00
 NOTIFICATIONS_TOMORROW_BRIEF_TIME=18:00

.gitignore

@@ -6,3 +6,5 @@ out
 npm-debug.log*
 .DS_Store
 tsconfig.tsbuildinfo
+data/*.sqlite
+data/*.sqlite-*

AGENTS.md

@@ -4,7 +4,7 @@
 
 `wtr.` to mobilna PWA pogodowa dla Polski. Pokazuje bieżącą analizę IMGW Hybrid, pomiary synoptyczne, dane hydrologiczne i ostrzeżenia z publicznych API IMGW oraz prognozę modelową łączącą IMGW ALARO z Open-Meteo. Open-Meteo Geocoding służy także do wyszukiwania miejscowości, a Nominatim / OpenStreetMap do opcjonalnego reverse geocodingu po zgodzie GPS użytkownika.
 
-Stack: Next.js App Router, React, TypeScript, Tailwind CSS, TanStack Query, Zustand, Framer Motion, Recharts, Lucide React i `web-push`. PWA korzysta z manifestu oraz własnego service workera.
+Stack: Next.js App Router, React, TypeScript, Tailwind CSS, TanStack Query, Zustand, Framer Motion, Recharts, Lucide React, `web-push` i SQLite przez `better-sqlite3`. PWA korzysta z manifestu oraz własnego service workera.
 
 Najważniejsze katalogi:
 
@@ -50,7 +50,7 @@ Repozytorium nie ma obecnie skryptu testów ani formattera. `npm run typecheck`
 - Dashboard pokazuje kompaktowo wyłącznie aktywne i nadchodzące ostrzeżenia meteo dla wybranego obszaru. Filtruj je po `validTo` względem czasu przeglądarki i automatycznie usuwaj wygasłe komunikaty bez przeładowania strony.
 - Brief dnia i brief na jutro generuj deterministycznie w `lib/weather-brief.ts` z prognozy modelowej i ostrzeżeń IMGW. Nie traktuj ich jako odpowiedzi modelu AI i nie wymagaj klucza OpenAI API. Brief na jutro korzysta z pełnego jutrzejszego dnia prognozy i może informować o burzach na podstawie kodów modelu także bez oficjalnego ostrzeżenia IMGW.
 - Preferencje jednostek temperatury i wiatru są ustawieniami prezentacyjnymi. Dane źródłowe oraz progi logiki pogody pozostają liczone w `°C` i `m/s`, a wybrane jednostki zapisuj w subskrypcji Web Push, żeby briefy serwerowe używały tego samego formatu co UI.
-- Powiadomienia Web Push o ostrzeżeniach meteo, porannym briefie i wieczornym briefie na jutro konfiguruj przez `/settings`, `public/sw.js`, route handlery `app/api/notifications/*`, w tym testowy `/api/notifications/test`, oraz self-hostowany worker `scripts/notification-worker.mjs`. Endpointy harmonogramu nie uruchamiają się same bez workera albo zewnętrznego crona. Wymagają kluczy VAPID w zmiennych środowiskowych. iOS/iPadOS wymaga PWA z ekranu początkowego, ale Android i desktop nie powinny być blokowane wymogiem `standalone`. Obecny `lib/push-store.ts` jest pamięciowy i przed produkcją musi zostać zastąpiony trwałym magazynem subskrypcji.
+- Powiadomienia Web Push o ostrzeżeniach meteo, porannym briefie i wieczornym briefie na jutro konfiguruj przez `/settings`, `public/sw.js`, route handlery `app/api/notifications/*`, w tym testowy `/api/notifications/test`, oraz self-hostowany worker `scripts/notification-worker.mjs`. Endpointy harmonogramu nie uruchamiają się same bez workera albo zewnętrznego crona. Wymagają kluczy VAPID w zmiennych środowiskowych. iOS/iPadOS wymaga PWA z ekranu początkowego, ale Android i desktop nie powinny być blokowane wymogiem `standalone`. `lib/push-store.ts` zapisuje subskrypcje i historię wysyłek w SQLite wskazanym przez `WTR_DATABASE_PATH`, domyślnie `./data/wtr.sqlite`.
 - GPS wymaga świadomej zgody użytkownika i HTTPS. Zaokrąglaj współrzędne przed użyciem i utrzymuj widoczną atrybucję OpenStreetMap dla reverse geocodingu Nominatim.
 - Normalizuj zewnętrzne odpowiedzi i obsługuj `null`, puste pola oraz błędne wartości. Brak danych pokazuj jawnie zamiast uzupełniać estymacją.
 - Dla pobierania danych używaj TanStack Query z sensownym `queryKey`, cache i retry. W UI zachowuj loading, error, retry oraz empty states.

README.md

@@ -25,6 +25,7 @@ Aplikacja pokazuje bieżącą analizę IMGW Hybrid, pomiary synoptyczne, prognoz
 - Recharts
 - Lucide React
 - `web-push`
+- SQLite przez `better-sqlite3` dla trwałego magazynu subskrypcji Web Push
 - własny service worker i manifest PWA
 
 ## Szybki Start
@@ -50,6 +51,7 @@ WEB_PUSH_VAPID_PRIVATE_KEY=
 WEB_PUSH_VAPID_SUBJECT=mailto:admin@example.com
 NOTIFICATIONS_CRON_SECRET=
 WTR_APP_URL=http://127.0.0.1:3000
+WTR_DATABASE_PATH=./data/wtr.sqlite
 NOTIFICATIONS_WARNING_INTERVAL_MINUTES=5
 NOTIFICATIONS_MORNING_BRIEF_TIME=07:00
 NOTIFICATIONS_TOMORROW_BRIEF_TIME=18:00
@@ -106,7 +108,7 @@ docs/         szczegółowa dokumentacja techniczna
 
 ## Status i Ograniczenia
 
-- `lib/push-store.ts` przechowuje subskrypcje Web Push w pamięci procesu. Produkcyjne wdrożenie wymaga trwałego magazynu, np. bazy danych albo KV.
+- `lib/push-store.ts` przechowuje subskrypcje Web Push i historię wysyłek w lokalnym SQLite. Na self-hostingu zadbaj o trwały katalog dla `WTR_DATABASE_PATH` i backup pliku bazy.
 - Endpoint IMGW Hybrid używany przez dashboard pochodzi z publicznego frontendu `meteo.imgw.pl`, a nie ze stabilnie opisanej dokumentacji `danepubliczne.imgw.pl`.
 - Publiczne API IMGW potrafi zwrócić `404` z komunikatem `No products were found` dla pustych list ostrzeżeń; aplikacja traktuje to jako brak ostrzeżeń.
 - Prognoza jest prognozą modelową, nie pomiarem IMGW. Bieżące pomiary i prognozy są w UI rozdzielane.

docs/api.md

@@ -14,7 +14,7 @@ Wszystkie zewnętrzne źródła danych są wywoływane przez route handlery Next
 
 ## Powiadomienia
 
-Endpointy powiadomień działają w runtime Node.js, bo korzystają z `web-push` i pamięciowego magazynu subskrypcji.
+Endpointy powiadomień działają w runtime Node.js, bo korzystają z `web-push` i lokalnego magazynu SQLite dla subskrypcji.
 
 | Metoda | Endpoint | Przeznaczenie |
 | --- | --- | --- |

docs/deployment.md

@@ -60,6 +60,7 @@ WEB_PUSH_VAPID_PRIVATE_KEY=
 WEB_PUSH_VAPID_SUBJECT=mailto:admin@example.com
 NOTIFICATIONS_CRON_SECRET=
 WTR_APP_URL=http://127.0.0.1:3000
+WTR_DATABASE_PATH=./data/wtr.sqlite
 NOTIFICATIONS_WARNING_INTERVAL_MINUTES=5
 NOTIFICATIONS_MORNING_BRIEF_TIME=07:00
 NOTIFICATIONS_TOMORROW_BRIEF_TIME=18:00
@@ -67,6 +68,8 @@ NOTIFICATIONS_TOMORROW_BRIEF_TIME=18:00
 
 Do zwykłego uruchomienia aplikacji pogodowej zmienne Web Push nie są wymagane. Są potrzebne dopiero dla powiadomień.
 
+`WTR_DATABASE_PATH` wskazuje plik SQLite z subskrypcjami Web Push i historią wysyłek. Na self-hostingu ustaw go na ścieżkę w trwałym katalogu, np. `/home/admin/wtr-data/wtr.sqlite`, jeśli katalog projektu jest podmieniany podczas deploya.
+
 ## Jakość
 
 Przed zakończeniem zmian uruchamiaj:

docs/notifications.md

@@ -31,6 +31,14 @@ Endpointy harmonogramu wymagają też sekretu crona w produkcji:
 NOTIFICATIONS_CRON_SECRET=
 ```
 
+Subskrypcje Web Push i historia wysyłek są zapisywane w SQLite:
+
+```bash
+WTR_DATABASE_PATH=./data/wtr.sqlite
+```
+
+Jeśli zmienna nie jest ustawiona, aplikacja używa `./data/wtr.sqlite` względem katalogu projektu.
+
 ## Preferencje Subskrypcji
 
 Subskrypcja Web Push zapisuje:
@@ -114,6 +122,6 @@ x-cron-secret: <NOTIFICATIONS_CRON_SECRET>
 
 ## Ograniczenia
 
-Obecny `lib/push-store.ts` przechowuje subskrypcje i historię wysyłek w pamięci procesu. Po restarcie procesu te dane znikają. Produkcja wymaga trwałego magazynu, np. bazy danych albo KV.
+`lib/push-store.ts` przechowuje subskrypcje i historię wysyłek w lokalnym SQLite przez `better-sqlite3`. Dane przetrwają restart procesu, jeśli plik wskazany przez `WTR_DATABASE_PATH` znajduje się w trwałym katalogu. Na self-hostingu warto backupować plik bazy razem z plikami `-wal` i `-shm`, jeśli istnieją.
 
 Powiadomienie testowe jest wysyłane na konkretny endpoint subskrypcji przekazany z `/settings`, a nie broadcastowane do wszystkich urządzeń.

lib/push-store.ts

@@ -1,83 +1,265 @@
+import Database from "better-sqlite3";
+import fs from "node:fs";
+import path from "node:path";
+import { DEFAULT_TEMPERATURE_UNIT, DEFAULT_WIND_SPEED_UNIT, isTemperatureUnit, isWindSpeedUnit } from "@/lib/weather-utils";
 import type { WarningPushSubscription } from "@/types/notifications";
+import type { Province } from "@/types/province";
 
-interface PushStore {
-  subscriptions: Map<string, WarningPushSubscription>;
-  sentWarningIds: Map<string, Set<string>>;
-  sentMorningBriefDates: Map<string, Set<string>>;
-  sentTomorrowBriefDates: Map<string, Set<string>>;
+interface PushDatabase {
+  database: Database.Database;
 }
 
-const globalStore = globalThis as typeof globalThis & { __wtrPushStore?: PushStore };
+interface PushSubscriptionRow {
+  endpoint: string;
+  subscription_json: string;
+  province: string;
+  language: string;
+  enabled: number;
+  morning_brief_enabled: number;
+  tomorrow_brief_enabled: number;
+  latitude: number | null;
+  longitude: number | null;
+  location_name: string | null;
+  county_teryt: string | null;
+  temperature_unit: string | null;
+  wind_speed_unit: string | null;
+  created_at: string;
+  updated_at: string;
+}
 
-function getStore() {
-  if (!globalStore.__wtrPushStore) {
-    globalStore.__wtrPushStore = {
-      subscriptions: new Map(),
-      sentWarningIds: new Map(),
-      sentMorningBriefDates: new Map(),
-      sentTomorrowBriefDates: new Map(),
-    };
+const globalStore = globalThis as typeof globalThis & { __wtrPushDatabase?: PushDatabase };
+
+function getDatabasePath() {
+  const configuredPath = process.env.WTR_DATABASE_PATH;
+  if (configuredPath) {
+    return path.isAbsolute(configuredPath)
+      ? configuredPath
+      : path.join(/* turbopackIgnore: true */ process.cwd(), configuredPath);
+  }
+  return path.join(/* turbopackIgnore: true */ process.cwd(), "data", "wtr.sqlite");
+}
+
+function ensureDatabaseDirectory(databasePath: string) {
+  fs.mkdirSync(path.dirname(databasePath), { recursive: true });
+}
+
+function initializeDatabase(database: Database.Database) {
+  database.pragma("journal_mode = WAL");
+  database.pragma("foreign_keys = ON");
+  database.exec(`
+    CREATE TABLE IF NOT EXISTS push_subscriptions (
+      endpoint TEXT PRIMARY KEY,
+      subscription_json TEXT NOT NULL,
+      province TEXT NOT NULL,
+      language TEXT NOT NULL,
+      enabled INTEGER NOT NULL DEFAULT 1,
+      morning_brief_enabled INTEGER NOT NULL DEFAULT 0,
+      tomorrow_brief_enabled INTEGER NOT NULL DEFAULT 0,
+      latitude REAL,
+      longitude REAL,
+      location_name TEXT,
+      county_teryt TEXT,
+      temperature_unit TEXT NOT NULL DEFAULT '${DEFAULT_TEMPERATURE_UNIT}',
+      wind_speed_unit TEXT NOT NULL DEFAULT '${DEFAULT_WIND_SPEED_UNIT}',
+      created_at TEXT NOT NULL,
+      updated_at TEXT NOT NULL
+    );
+
+    CREATE TABLE IF NOT EXISTS sent_warnings (
+      endpoint TEXT NOT NULL,
+      warning_id TEXT NOT NULL,
+      sent_at TEXT NOT NULL,
+      PRIMARY KEY (endpoint, warning_id),
+      FOREIGN KEY (endpoint) REFERENCES push_subscriptions(endpoint) ON DELETE CASCADE
+    );
+
+    CREATE TABLE IF NOT EXISTS sent_morning_briefs (
+      endpoint TEXT NOT NULL,
+      date_key TEXT NOT NULL,
+      sent_at TEXT NOT NULL,
+      PRIMARY KEY (endpoint, date_key),
+      FOREIGN KEY (endpoint) REFERENCES push_subscriptions(endpoint) ON DELETE CASCADE
+    );
+
+    CREATE TABLE IF NOT EXISTS sent_tomorrow_briefs (
+      endpoint TEXT NOT NULL,
+      date_key TEXT NOT NULL,
+      sent_at TEXT NOT NULL,
+      PRIMARY KEY (endpoint, date_key),
+      FOREIGN KEY (endpoint) REFERENCES push_subscriptions(endpoint) ON DELETE CASCADE
+    );
+  `);
+}
+
+function getDatabase() {
+  if (!globalStore.__wtrPushDatabase) {
+    const databasePath = getDatabasePath();
+    ensureDatabaseDirectory(databasePath);
+    const database = new Database(databasePath);
+    initializeDatabase(database);
+    globalStore.__wtrPushDatabase = { database };
+  }
+  return globalStore.__wtrPushDatabase.database;
+}
+
+function parseSubscription(row: PushSubscriptionRow): WarningPushSubscription | null {
+  try {
+    const subscription = JSON.parse(row.subscription_json) as WarningPushSubscription["subscription"];
+    return {
+      endpoint: row.endpoint,
+      subscription,
+      province: row.province as Province,
+      language: row.language === "en" ? "en" : "pl",
+      enabled: row.enabled === 1,
+      morningBriefEnabled: row.morning_brief_enabled === 1,
+      tomorrowBriefEnabled: row.tomorrow_brief_enabled === 1,
+      latitude: row.latitude,
+      longitude: row.longitude,
+      locationName: row.location_name,
+      countyTeryt: row.county_teryt,
+      temperatureUnit: isTemperatureUnit(row.temperature_unit) ? row.temperature_unit : DEFAULT_TEMPERATURE_UNIT,
+      windSpeedUnit: isWindSpeedUnit(row.wind_speed_unit) ? row.wind_speed_unit : DEFAULT_WIND_SPEED_UNIT,
+      createdAt: row.created_at,
+      updatedAt: row.updated_at,
+    };
+  } catch {
+    return null;
   }
-  return globalStore.__wtrPushStore;
 }
 
 export function upsertPushSubscription(subscription: WarningPushSubscription) {
-  getStore().subscriptions.set(subscription.endpoint, subscription);
-}
-
-export function removePushSubscription(endpoint: string) {
-  const store = getStore();
-  store.subscriptions.delete(endpoint);
-  store.sentWarningIds.delete(endpoint);
-  store.sentMorningBriefDates.delete(endpoint);
-  store.sentTomorrowBriefDates.delete(endpoint);
-}
-
-export function getPushSubscriptions() {
-  return Array.from(getStore().subscriptions.values());
-}
-
-export function getPushSubscription(endpoint: string) {
-  return getStore().subscriptions.get(endpoint) ?? null;
-}
-
-export function hasSentWarning(endpoint: string, warningId: string) {
-  return getStore().sentWarningIds.get(endpoint)?.has(warningId) ?? false;
-}
-
-export function markWarningSent(endpoint: string, warningId: string) {
-  const store = getStore();
-  const sentIds = store.sentWarningIds.get(endpoint) ?? new Set<string>();
-  sentIds.add(warningId);
-  store.sentWarningIds.set(endpoint, sentIds);
-}
-
-export function pruneSentWarnings(activeWarningIds: Set<string>) {
-  getStore().sentWarningIds.forEach((sentIds) => {
-    sentIds.forEach((warningId) => {
-      if (!activeWarningIds.has(warningId)) sentIds.delete(warningId);
-    });
+  getDatabase().prepare(`
+    INSERT INTO push_subscriptions (
+      endpoint,
+      subscription_json,
+      province,
+      language,
+      enabled,
+      morning_brief_enabled,
+      tomorrow_brief_enabled,
+      latitude,
+      longitude,
+      location_name,
+      county_teryt,
+      temperature_unit,
+      wind_speed_unit,
+      created_at,
+      updated_at
+    ) VALUES (
+      @endpoint,
+      @subscriptionJson,
+      @province,
+      @language,
+      @enabled,
+      @morningBriefEnabled,
+      @tomorrowBriefEnabled,
+      @latitude,
+      @longitude,
+      @locationName,
+      @countyTeryt,
+      @temperatureUnit,
+      @windSpeedUnit,
+      @createdAt,
+      @updatedAt
+    )
+    ON CONFLICT(endpoint) DO UPDATE SET
+      subscription_json = excluded.subscription_json,
+      province = excluded.province,
+      language = excluded.language,
+      enabled = excluded.enabled,
+      morning_brief_enabled = excluded.morning_brief_enabled,
+      tomorrow_brief_enabled = excluded.tomorrow_brief_enabled,
+      latitude = excluded.latitude,
+      longitude = excluded.longitude,
+      location_name = excluded.location_name,
+      county_teryt = excluded.county_teryt,
+      temperature_unit = excluded.temperature_unit,
+      wind_speed_unit = excluded.wind_speed_unit,
+      updated_at = excluded.updated_at
+  `).run({
+    endpoint: subscription.endpoint,
+    subscriptionJson: JSON.stringify(subscription.subscription),
+    province: subscription.province,
+    language: subscription.language,
+    enabled: subscription.enabled ? 1 : 0,
+    morningBriefEnabled: subscription.morningBriefEnabled ? 1 : 0,
+    tomorrowBriefEnabled: subscription.tomorrowBriefEnabled ? 1 : 0,
+    latitude: subscription.latitude,
+    longitude: subscription.longitude,
+    locationName: subscription.locationName,
+    countyTeryt: subscription.countyTeryt,
+    temperatureUnit: subscription.temperatureUnit,
+    windSpeedUnit: subscription.windSpeedUnit,
+    createdAt: subscription.createdAt,
+    updatedAt: subscription.updatedAt,
   });
 }
 
+export function removePushSubscription(endpoint: string) {
+  getDatabase().prepare("DELETE FROM push_subscriptions WHERE endpoint = ?").run(endpoint);
+}
+
+export function getPushSubscriptions() {
+  return getDatabase()
+    .prepare("SELECT * FROM push_subscriptions ORDER BY created_at ASC")
+    .all()
+    .map((row) => parseSubscription(row as PushSubscriptionRow))
+    .filter((subscription): subscription is WarningPushSubscription => subscription !== null);
+}
+
+export function getPushSubscription(endpoint: string) {
+  const row = getDatabase().prepare("SELECT * FROM push_subscriptions WHERE endpoint = ?").get(endpoint);
+  return row ? parseSubscription(row as PushSubscriptionRow) : null;
+}
+
+export function hasSentWarning(endpoint: string, warningId: string) {
+  const row = getDatabase()
+    .prepare("SELECT 1 FROM sent_warnings WHERE endpoint = ? AND warning_id = ?")
+    .get(endpoint, warningId);
+  return Boolean(row);
+}
+
+export function markWarningSent(endpoint: string, warningId: string) {
+  getDatabase()
+    .prepare("INSERT OR IGNORE INTO sent_warnings (endpoint, warning_id, sent_at) VALUES (?, ?, ?)")
+    .run(endpoint, warningId, new Date().toISOString());
+}
+
+export function pruneSentWarnings(activeWarningIds: Set<string>) {
+  const database = getDatabase();
+  if (!activeWarningIds.size) {
+    database.prepare("DELETE FROM sent_warnings").run();
+    return;
+  }
+
+  database.transaction((warningIds: string[]) => {
+    const placeholders = warningIds.map(() => "?").join(", ");
+    database.prepare(`DELETE FROM sent_warnings WHERE warning_id NOT IN (${placeholders})`).run(...warningIds);
+  })(Array.from(activeWarningIds));
+}
+
 export function hasSentMorningBrief(endpoint: string, dateKey: string) {
-  return getStore().sentMorningBriefDates.get(endpoint)?.has(dateKey) ?? false;
+  const row = getDatabase()
+    .prepare("SELECT 1 FROM sent_morning_briefs WHERE endpoint = ? AND date_key = ?")
+    .get(endpoint, dateKey);
+  return Boolean(row);
 }
 
 export function markMorningBriefSent(endpoint: string, dateKey: string) {
-  const store = getStore();
-  const sentDates = store.sentMorningBriefDates.get(endpoint) ?? new Set<string>();
-  sentDates.add(dateKey);
-  store.sentMorningBriefDates.set(endpoint, sentDates);
+  getDatabase()
+    .prepare("INSERT OR IGNORE INTO sent_morning_briefs (endpoint, date_key, sent_at) VALUES (?, ?, ?)")
+    .run(endpoint, dateKey, new Date().toISOString());
 }
 
 export function hasSentTomorrowBrief(endpoint: string, dateKey: string) {
-  return getStore().sentTomorrowBriefDates.get(endpoint)?.has(dateKey) ?? false;
+  const row = getDatabase()
+    .prepare("SELECT 1 FROM sent_tomorrow_briefs WHERE endpoint = ? AND date_key = ?")
+    .get(endpoint, dateKey);
+  return Boolean(row);
 }
 
 export function markTomorrowBriefSent(endpoint: string, dateKey: string) {
-  const store = getStore();
-  const sentDates = store.sentTomorrowBriefDates.get(endpoint) ?? new Set<string>();
-  sentDates.add(dateKey);
-  store.sentTomorrowBriefDates.set(endpoint, sentDates);
+  getDatabase()
+    .prepare("INSERT OR IGNORE INTO sent_tomorrow_briefs (endpoint, date_key, sent_at) VALUES (?, ?, ?)")
+    .run(endpoint, dateKey, new Date().toISOString());
 }

next.config.ts

@@ -3,6 +3,7 @@ import type { NextConfig } from "next";
 const nextConfig: NextConfig = {
   allowedDevOrigins: ["192.168.0.174"],
   reactStrictMode: true,
+  serverExternalPackages: ["better-sqlite3"],
 };
 
 export default nextConfig;

package-lock.json

@@ -9,6 +9,7 @@
       "version": "1.0.0",
       "dependencies": {
         "@tanstack/react-query": "^5.80.0",
+        "better-sqlite3": "^12.10.0",
         "class-variance-authority": "^0.7.1",
         "clsx": "^2.1.1",
         "framer-motion": "^12.0.0",
@@ -22,6 +23,7 @@
         "zustand": "^5.0.3"
       },
       "devDependencies": {
+        "@types/better-sqlite3": "^7.6.13",
         "@types/node": "^22.10.0",
         "@types/react": "^19.0.0",
         "@types/react-dom": "^19.0.0",
@@ -1451,6 +1453,16 @@
         "tslib": "^2.4.0"
       }
     },
+    "node_modules/@types/better-sqlite3": {
+      "version": "7.6.13",
+      "resolved": "https://registry.npmjs.org/@types/better-sqlite3/-/better-sqlite3-7.6.13.tgz",
+      "integrity": "sha512-NMv9ASNARoKksWtsq/SHakpYAYnhBrQgGD8zkLYk/jaK8jUGn08CfEdTRgYhMypUQAfzSP8W6gNLe0q19/t4VA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/d3-array": {
       "version": "3.2.2",
       "resolved": "https://registry.npmjs.org/@types/d3-array/-/d3-array-3.2.2.tgz",
@@ -2585,6 +2597,26 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/base64-js": {
+      "version": "1.5.1",
+      "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.5.1.tgz",
+      "integrity": "sha512-AKpaYlHn8t4SVbOHCy+b5+KKgvR4vrsD8vbvrbiQJps7fKDTkjkDry6ji0rUJjC0kzbNePLwzxq8iypo41qeWA==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
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+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/simple-get/-/simple-get-4.0.1.tgz",
+      "integrity": "sha512-brv7p5WgH0jmQJr1ZDDfKDOSeWWg+OVypG99A/5vYGPqJ6pxiaHLy8nxtFjBA7oMa01ebA9gfh1uMCFqOuXxvA==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "decompress-response": "^6.0.0",
+        "once": "^1.3.1",
+        "simple-concat": "^1.0.0"
+      }
+    },
     "node_modules/source-map-js": {
       "version": "1.2.1",
       "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.1.tgz",
@@ -6544,6 +6889,15 @@
         "node": ">= 0.4"
       }
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+    "node_modules/string_decoder": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
+      "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+      "license": "MIT",
+      "dependencies": {
+        "safe-buffer": "~5.2.0"
+      }
+    },
     "node_modules/string.prototype.includes": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/string.prototype.includes/-/string.prototype.includes-2.0.1.tgz",
@@ -6852,6 +7206,34 @@
         "url": "https://github.com/sponsors/ljharb"
       }
     },
+    "node_modules/tar-fs": {
+      "version": "2.1.4",
+      "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.1.4.tgz",
+      "integrity": "sha512-mDAjwmZdh7LTT6pNleZ05Yt65HC3E+NiQzl672vQG38jIrehtJk/J3mNwIg+vShQPcLF/LV7CMnDW6vjj6sfYQ==",
+      "license": "MIT",
+      "dependencies": {
+        "chownr": "^1.1.1",
+        "mkdirp-classic": "^0.5.2",
+        "pump": "^3.0.0",
+        "tar-stream": "^2.1.4"
+      }
+    },
+    "node_modules/tar-stream": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-2.2.0.tgz",
+      "integrity": "sha512-ujeqbceABgwMZxEJnk2HDY2DlnUZ+9oEcb1KzTVfYHio0UE6dG71n60d8D2I4qNvleWrrXpmjpt7vZeF1LnMZQ==",
+      "license": "MIT",
+      "dependencies": {
+        "bl": "^4.0.3",
+        "end-of-stream": "^1.4.1",
+        "fs-constants": "^1.0.0",
+        "inherits": "^2.0.3",
+        "readable-stream": "^3.1.1"
+      },
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/thenify": {
       "version": "3.3.1",
       "resolved": "https://registry.npmjs.org/thenify/-/thenify-3.3.1.tgz",
@@ -6981,6 +7363,18 @@
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       "license": "0BSD"
     },
+    "node_modules/tunnel-agent": {
+      "version": "0.6.0",
+      "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
+      "integrity": "sha512-McnNiV1l8RYeY8tBgEpuodCC1mLUdbSN+CYBL7kJsJNInOP8UjDDEwdk6Mw60vdLLrr5NHKZhMAOSrR2NZuQ+w==",
+      "license": "Apache-2.0",
+      "dependencies": {
+        "safe-buffer": "^5.0.1"
+      },
+      "engines": {
+        "node": "*"
+      }
+    },
     "node_modules/type-check": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
@@ -7228,7 +7622,6 @@
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-      "dev": true,
       "license": "MIT"
     },
     "node_modules/victory-vendor": {
@@ -7387,6 +7780,12 @@
         "node": ">=0.10.0"
       }
     },
+    "node_modules/wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ==",
+      "license": "ISC"
+    },
     "node_modules/yallist": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.1.1.tgz",

package.json

@@ -12,6 +12,7 @@
   },
   "dependencies": {
     "@tanstack/react-query": "^5.80.0",
+    "better-sqlite3": "^12.10.0",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
     "framer-motion": "^12.0.0",
@@ -25,6 +26,7 @@
     "zustand": "^5.0.3"
   },
   "devDependencies": {
+    "@types/better-sqlite3": "^7.6.13",
     "@types/node": "^22.10.0",
     "@types/react": "^19.0.0",
     "@types/react-dom": "^19.0.0",