Ensure all PG tables on init; fix migration commits per table.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/migrate_sqlite_to_postgres.py

@@ -38,14 +38,10 @@ def _pg_columns(pg_conn, table: str) -> list[str]:
 
 
 def _reset_sequences(pg_conn, table: str, pk: str = "id") -> None:
-    try:
-        pg_conn.execute(
-            f"SELECT setval(pg_get_serial_sequence('{table}', '{pk}'), "
-            f"COALESCE((SELECT MAX({pk}) FROM {table}), 1), true)"
-        )
-        pg_conn.commit()
-    except Exception:
-        rollback_if_postgres(pg_conn)
+    pg_conn.execute(
+        f"SELECT setval(pg_get_serial_sequence('{table}', '{pk}'), "
+        f"COALESCE((SELECT MAX({pk}) FROM {table}), 1), true)"
+    )
 
 
 def migrate(*, sqlite_path: str | None = None, dry_run: bool = False) -> dict:
@@ -94,9 +90,11 @@ def migrate(*, sqlite_path: str | None = None, dry_run: bool = False) -> dict:
                 for row in rows:
                     dst.execute(insert_sql, tuple(row[c] for c in cols))
                 if "id" in cols:
-                    _reset_sequences(dst, table, "id")
-                else:
-                    dst.commit()
+                    try:
+                        _reset_sequences(dst, table, "id")
+                    except Exception:
+                        rollback_if_postgres(dst)
+                dst.commit()
                 stats[table] = len(rows)
                 print(f"  {table}: {len(rows)} 行")
             except Exception as exc: