fix: webapp accesability when tg is unreachable

db/migrator.py

@@ -303,6 +303,31 @@ def _migration_0010_add_email_magic_token_hash(connection: Connection) -> None:
     )
 
 
+def _migration_0011_add_user_telegram_avatars(connection: Connection) -> None:
+    connection.execute(
+        text(
+            """
+            CREATE TABLE IF NOT EXISTS user_telegram_avatars (
+                user_id BIGINT PRIMARY KEY REFERENCES users(user_id),
+                file_unique_id VARCHAR,
+                content_type VARCHAR(64) NOT NULL DEFAULT 'image/jpeg',
+                image_bytes BYTEA NOT NULL,
+                size_bytes INTEGER NOT NULL,
+                updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+            )
+            """
+        )
+    )
+    connection.execute(
+        text(
+            """
+            CREATE INDEX IF NOT EXISTS ix_user_telegram_avatars_file_unique_id
+            ON user_telegram_avatars (file_unique_id)
+            """
+        )
+    )
+
+
 def _migration_0009_add_composite_indexes(connection: Connection) -> None:
     connection.execute(
         text(
@@ -381,6 +406,11 @@ MIGRATIONS: List[Migration] = [
         description="Store hashed magic-link tokens for email login deeplinks",
         upgrade=_migration_0010_add_email_magic_token_hash,
     ),
+    Migration(
+        id="0011_add_user_telegram_avatars",
+        description="Cache compact Telegram profile avatars for WebApp profiles",
+        upgrade=_migration_0011_add_user_telegram_avatars,
+    ),
 ]