add history endpoint

api/services/task_service.py

@@ -59,6 +59,7 @@ class TaskService:
                     raw_response=raw,
                     error=None,
                     result=raw.get("result") if isinstance(raw, dict) else None,
+                    history=self._extract_history(raw),
                 )
             except asyncio.TimeoutError:
                 await self._store.set_done(
@@ -66,6 +67,7 @@ class TaskService:
                     success=False,
                     raw_response=None,
                     error="Timeout exceeded",
+                    history=None,
                 )
             except BrowserRpcError as exc:
                 await self._store.set_done(
@@ -73,6 +75,7 @@ class TaskService:
                     success=False,
                     raw_response=None,
                     error=str(exc),
+                    history=None,
                 )
             except Exception as exc:
                 await self._store.set_done(
@@ -80,4 +83,21 @@ class TaskService:
                     success=False,
                     raw_response=None,
                     error=f"Internal error: {exc}",
+                    history=None,
                 )
+
+    @staticmethod
+    def _extract_history(raw: dict | None) -> list[dict]:
+        if not isinstance(raw, dict):
+            return []
+
+        events = raw.get("history")
+        if not isinstance(events, list):
+            return []
+
+        normalized: list[dict] = []
+        for event in events:
+            if isinstance(event, dict):
+                normalized.append(event)
+        return normalized
+