feat: Update database version to 10 and implement migration to clear large blob attachments; adjust blob handling for IMAGE/FILE types in MessageRepository and ChatViewModel

app/src/main/java/com/rosetta/messenger/database/RosettaDatabase.kt

@@ -15,7 +15,7 @@ import androidx.sqlite.db.SupportSQLiteDatabase
         BlacklistEntity::class,
         AvatarCacheEntity::class
     ],
-    version = 9,
+    version = 10,
     exportSchema = false
 )
 abstract class RosettaDatabase : RoomDatabase() {
@@ -83,6 +83,21 @@ abstract class RosettaDatabase : RoomDatabase() {
                 """)
             }
         }
+        
+        /**
+         * 🔥 МИГРАЦИЯ 9->10: Повторная очистка blob из attachments
+         * Для пользователей которые уже были на версии 9
+         */
+        private val MIGRATION_9_10 = object : Migration(9, 10) {
+            override fun migrate(database: SupportSQLiteDatabase) {
+                // Очищаем все attachments с большими blob'ами
+                database.execSQL("""
+                    UPDATE messages 
+                    SET attachments = '[]'
+                    WHERE length(attachments) > 10000
+                """)
+            }
+        }
 
         fun getDatabase(context: Context): RosettaDatabase {
             return INSTANCE ?: synchronized(this) {
@@ -92,7 +107,7 @@ abstract class RosettaDatabase : RoomDatabase() {
                     "rosetta_secure.db"
                 )
                     .setJournalMode(JournalMode.WRITE_AHEAD_LOGGING) // WAL mode for performance
-                    .addMigrations(MIGRATION_4_5, MIGRATION_5_6, MIGRATION_6_7, MIGRATION_7_8, MIGRATION_8_9)
+                    .addMigrations(MIGRATION_4_5, MIGRATION_5_6, MIGRATION_6_7, MIGRATION_7_8, MIGRATION_8_9, MIGRATION_9_10)
                     .fallbackToDestructiveMigration() // Для разработки - только если миграция не найдена
                     .build()
                 INSTANCE = instance