fix: spec_events schema — add seq,action,target_hash,new_values,comment,status columns

site/db/connection.py

@@ -77,8 +77,15 @@ def _create_schema(conn):
             id TEXT PRIMARY KEY,
             contract_id TEXT NOT NULL,
             supplement_id TEXT NOT NULL,
-            event_type TEXT NOT NULL,
-            payload TEXT,
+            seq INTEGER NOT NULL DEFAULT 0,
+            action TEXT NOT NULL DEFAULT 'UNRESOLVED',
+            target_hash TEXT DEFAULT '',
+            new_values TEXT DEFAULT '{}',
+            comment TEXT DEFAULT '',
+            status TEXT DEFAULT 'unresolved',
+            prompt_version TEXT DEFAULT '',
+            source_document_id TEXT DEFAULT '',
+            raw_llm_response TEXT DEFAULT '{}',
             created_at TEXT DEFAULT (datetime('now'))
         );
 
@@ -92,6 +99,7 @@ def _create_schema(conn):
             sum REAL,
             date_start TEXT,
             last_event_id TEXT,
+            updated_at TEXT DEFAULT (datetime('now')),
             created_at TEXT DEFAULT (datetime('now'))
         );