fix(migrations): add schema_version inserts to migrations 022-027

Defense-in-depth: The migration framework already handles missing
inserts via INSERT OR REPLACE (db.rs:174), but adding explicit
inserts to .sql files ensures consistency and makes migrations
self-documenting.

Migrations affected:
- 022_notes_query_index
- 024_note_documents  
- 025_note_dirty_backfill
- 026_scoring_indexes
- 027_surgical_sync_runs

migrations/022_notes_query_index.sql

@@ -19,3 +19,6 @@ CREATE INDEX IF NOT EXISTS idx_discussions_mr_id ON discussions(merge_request_id
 -- Immutable author identity column (GitLab numeric user ID)
 ALTER TABLE notes ADD COLUMN author_id INTEGER;
 CREATE INDEX IF NOT EXISTS idx_notes_author_id ON notes(author_id) WHERE author_id IS NOT NULL;
+
+INSERT INTO schema_version (version, applied_at, description)
+VALUES (22, strftime('%s', 'now') * 1000, '022_notes_query_index');

migrations/024_note_documents.sql

@@ -151,3 +151,6 @@ END;
 
 DROP TABLE IF EXISTS _doc_labels_backup;
 DROP TABLE IF EXISTS _doc_paths_backup;
+
+INSERT INTO schema_version (version, applied_at, description)
+VALUES (24, strftime('%s', 'now') * 1000, '024_note_documents');

migrations/025_note_dirty_backfill.sql

@@ -6,3 +6,6 @@ FROM notes n
 LEFT JOIN documents d ON d.source_type = 'note' AND d.source_id = n.id
 WHERE n.is_system = 0 AND d.id IS NULL
 ON CONFLICT(source_type, source_id) DO NOTHING;
+
+INSERT INTO schema_version (version, applied_at, description)
+VALUES (25, strftime('%s', 'now') * 1000, '025_note_dirty_backfill');

migrations/026_scoring_indexes.sql

@@ -18,3 +18,6 @@ CREATE INDEX IF NOT EXISTS idx_notes_diffnote_discussion_author
 CREATE INDEX IF NOT EXISTS idx_notes_old_path_project_created
   ON notes(position_old_path, project_id, created_at)
   WHERE note_type = 'DiffNote' AND is_system = 0 AND position_old_path IS NOT NULL;
+
+INSERT INTO schema_version (version, applied_at, description)
+VALUES (26, strftime('%s', 'now') * 1000, '026_scoring_indexes');

migrations/027_surgical_sync_runs.sql

@@ -18,3 +18,6 @@ CREATE INDEX IF NOT EXISTS idx_sync_runs_mode_started
     ON sync_runs(mode, started_at DESC);
 CREATE INDEX IF NOT EXISTS idx_sync_runs_status_phase_started
     ON sync_runs(status, phase, started_at DESC);
+
+INSERT INTO schema_version (version, applied_at, description)
+VALUES (27, strftime('%s', 'now') * 1000, '027_surgical_sync_runs');