kin: auto-commit after pipeline

core/db.py

@@ -640,6 +640,12 @@ def _migrate(conn: sqlite3.Connection):
         """)
         conn.commit()
 
+    # Add test_command column to projects (KIN-ARCH-008)
+    projects_cols = {row["name"] for row in conn.execute("PRAGMA table_info(projects)")}
+    if "test_command" not in projects_cols:
+        conn.execute("ALTER TABLE projects ADD COLUMN test_command TEXT DEFAULT 'make test'")
+        conn.commit()
+
     # Rename legacy 'auto' → 'auto_complete' (KIN-063)
     conn.execute(
         "UPDATE projects SET execution_mode = 'auto_complete' WHERE execution_mode = 'auto'"