feat(app): scaffolding initial du projet Flutter GameTime

Structure Flutter iOS/Android (lib/ organisé en couches domain,
application, infrastructure, presentation), intégration Drift pour la
persistance locale (sqlite3_flutter_libs), configuration des plateformes
android/ et ios/. Build APK debug validé.

Ajuste le .gitignore pour ignorer l'état d'exécution IdeA
(.ideai/permissions.json) au même titre que le reste du runtime.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

ios/Flutter/AppFrameworkInfo.plist

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>en</string>
+  <key>CFBundleExecutable</key>
+  <string>App</string>
+  <key>CFBundleIdentifier</key>
+  <string>io.flutter.flutter.app</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>App</string>
+  <key>CFBundlePackageType</key>
+  <string>FMWK</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>1.0</string>
+</dict>
+</plist>