chore(deps): replace @libsql with better-sqlite3

Remove @libsql/client and its transitive entries from package-lock and
add better-sqlite3 plus its TypeScript types. This updates the lockfile
to reflect switching DB client dependencies: drop the @libsql packages
and related node_modules entries, and add "better-sqlite3" and
"@types/better-sqlite3". The change reduces unused libsql artifacts and
ensures type definitions are available for the new native sqlite client.

package.json

@@ -34,7 +34,7 @@
             "!**/*.map"
         ],
         "asarUnpack": [
-            "node_modules/@libsql/**"
+            "**/better-sqlite3/**"
         ],
         "extraMetadata": {
             "main": "electron-backend/main.js"
@@ -131,7 +131,7 @@
         "@angular/platform-browser": "~20.3.10",
         "@angular/platform-browser-dynamic": "~20.3.10",
         "@angular/router": "~20.3.10",
-        "@libsql/client": "0.15.15",
+        "better-sqlite3": "^12.5.0",
         "@ngrx/component-store": "20.0.0",
         "@ngrx/effects": "20.0.0",
         "@ngrx/entity": "20.0.0",
@@ -149,7 +149,6 @@
         "date-fns": "4.1.0",
         "drizzle-orm": "0.44.6",
         "electron-conf": "1.3.0",
-        "electron-store": "11.0.2",
         "epg-parser": "0.4.0",
         "fix-path": "5.0.0",
         "hls.js": "1.6.13",
@@ -208,6 +207,7 @@
         "@swc-node/register": "~1.9.1",
         "@swc/core": "~1.5.7",
         "@swc/helpers": "~0.5.11",
+        "@types/better-sqlite3": "^7.6.12",
         "@types/jest": "^30.0.0",
         "@types/lodash": "4.17.20",
         "@types/mocha": "9.0.0",
@@ -223,6 +223,7 @@
         "drizzle-kit": "0.31.5",
         "electron": "^39.0.0",
         "electron-builder": "^26.0.12",
+        "electron-playwright-helpers": "1.8.2",
         "esbuild": "0.27.0",
         "eslint": "^9.8.0",
         "eslint-config-prettier": "^10.1.8",