fix(db): merge feedback + language alembic heads

alembic/versions/7efe9fc8bde1_merge_feedback_language_migration_heads.py

@@ -0,0 +1,34 @@
+"""merge feedback + language migration heads
+
+The feedback-widget branch (#7143) and the language-descriptions branch
+(#7142) both descended from `3a7e1b5c0c4f` and merged to main
+independently, leaving two alembic heads (`e5b1c9d4a7f2`,
+`c5f9a3d72be1`). That broke `Sync: PostgreSQL` on every push to main
+with "Multiple head revisions are present for given argument 'head'".
+
+This is a no-op merge revision that joins both heads into a single
+head (`7efe9fc8bde1`) so `alembic upgrade head` resolves again.
+
+Revision ID: 7efe9fc8bde1
+Revises: c5f9a3d72be1, e5b1c9d4a7f2
+Create Date: 2026-05-18
+"""
+
+from __future__ import annotations
+
+from collections.abc import Sequence
+
+
+# revision identifiers, used by Alembic.
+revision: str = "7efe9fc8bde1"
+down_revision: tuple[str, str] = ("c5f9a3d72be1", "e5b1c9d4a7f2")
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    pass
+
+
+def downgrade() -> None:
+    pass