feat(investigation): preserve cumulative reference graphs

Accumulate investigation paths and preserve failed attempts across rounds. Keep graph annotations separate from execution state, synchronize the API contract, and consolidate documentation.
2026-11-11 19:10:41 +08:00
parent e47c61c121
commit b853b61a0b
38 changed files with 2445 additions and 147 deletions
@@ -628,6 +628,37 @@ class OperationalTaskRepository:
        row = await cursor.fetchone()
        return row["document"] if row else None

+    async def get_latest_graph_progress(self, task_id: str) -> dict | None:
+        availability = await self.connection.execute(
+            "SELECT to_regclass('workbench.operational_task_progress') AS relation"
+        )
+        if not (await availability.fetchone())["relation"]:
+            return None
+        cursor = await self.connection.execute(
+            """SELECT document FROM workbench.operational_task_progress
+               WHERE project_id=%s AND task_id=%s
+                 AND jsonb_typeof(document#>'{progress,diagram,edges}')='array'
+               ORDER BY (document->>'execution_generation')::bigint DESC, revision DESC LIMIT 1""",
+            (self.project_id, task_id),
+        )
+        row = await cursor.fetchone()
+        return row["document"] if row else None
+
+    async def get_latest_diagram(self, task_id: str) -> dict | None:
+        cursor = await self.connection.execute(
+            """SELECT diagram FROM (
+                 SELECT document#>'{progress,diagram}' AS diagram, published_at AS occurred_at
+                 FROM workbench.operational_task_progress WHERE project_id=%s AND task_id=%s
+                 UNION ALL
+                 SELECT document#>'{report,diagram}', created_at
+                 FROM workbench.operational_task_reports WHERE project_id=%s AND task_id=%s
+               ) AS diagrams WHERE jsonb_typeof(diagram)='object'
+               ORDER BY occurred_at DESC LIMIT 1""",
+            (self.project_id, task_id, self.project_id, task_id),
+        )
+        row = await cursor.fetchone()
+        return row["diagram"] if row else None
+
    async def save_progress(self, task_id: str, snapshot: dict) -> None:
        cursor = await self.connection.execute(
            """INSERT INTO workbench.operational_task_progress