kin: KIN-UI-002 Исправить падающие тесты миграции (регрессия KIN-ARCH-003) в core/db.py

core/db.py

@@ -371,6 +371,34 @@ def _migrate(conn: sqlite3.Connection):
         """)
         conn.commit()
 
+    # Migrate columns that must exist before table recreation (KIN-UI-002)
+    # These columns are referenced in the INSERT SELECT below but were not added
+    # by any prior ALTER TABLE in this chain — causing OperationalError on minimal schemas.
+    if "tech_stack" not in proj_cols:
+        conn.execute("ALTER TABLE projects ADD COLUMN tech_stack JSON DEFAULT NULL")
+        conn.commit()
+
+    if "priority" not in proj_cols:
+        conn.execute("ALTER TABLE projects ADD COLUMN priority INTEGER DEFAULT 5")
+        conn.commit()
+
+    if "pm_prompt" not in proj_cols:
+        conn.execute("ALTER TABLE projects ADD COLUMN pm_prompt TEXT DEFAULT NULL")
+        conn.commit()
+
+    if "claude_md_path" not in proj_cols:
+        conn.execute("ALTER TABLE projects ADD COLUMN claude_md_path TEXT DEFAULT NULL")
+        conn.commit()
+
+    if "forgejo_repo" not in proj_cols:
+        conn.execute("ALTER TABLE projects ADD COLUMN forgejo_repo TEXT DEFAULT NULL")
+        conn.commit()
+
+    if "created_at" not in proj_cols:
+        # SQLite ALTER TABLE does not allow non-constant defaults like CURRENT_TIMESTAMP
+        conn.execute("ALTER TABLE projects ADD COLUMN created_at DATETIME DEFAULT NULL")
+        conn.commit()
+
     # Migrate projects.path from NOT NULL to nullable (KIN-ARCH-003)
     # SQLite doesn't support ALTER COLUMN, so we recreate the table.
     path_col_rows = conn.execute("PRAGMA table_info(projects)").fetchall()