feat(android): renommage package com.gametime.app → com.idea.gametime

- Mise à jour namespace et applicationId dans build.gradle.kts
- Déplacement des fichiers MainActivity.kt, session/, watch/ vers com/idea/gametime/
- Ajout garde-fou usesCleartextTraffic uniquement en debug/profile
- Nettoyage .gitignore pour exclure .gradle/ au niveau racine

Préparation ticket #261 release Android closed test

android/app/build.gradle.kts

@@ -28,7 +28,7 @@ check(sharedSigningStoreFile.isFile) {
 }
 
 android {
-    namespace = "com.gametime.app"
+    namespace = "com.idea.gametime"
     compileSdk = flutter.compileSdkVersion
     ndkVersion = flutter.ndkVersion
 
@@ -38,8 +38,8 @@ android {
     }
 
     defaultConfig {
-        applicationId = "com.gametime.app"
-        minSdk = flutter.minSdkVersion
+        applicationId = "com.idea.gametime"
+        minSdk = 26
         targetSdk = flutter.targetSdkVersion
         versionCode = flutter.versionCode
         versionName = flutter.versionName
@@ -72,5 +72,7 @@ flutter {
 }
 
 dependencies {
+    implementation("androidx.health.connect:connect-client:1.1.0")
     implementation("com.google.android.gms:play-services-wearable:19.0.0")
+    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:1.10.2")
 }