Wire dashboard context into Hearthkeeper

app/memory/repository.py

@@ -123,6 +123,33 @@ class Repository:
         result = await self.session.execute(stmt)
         return result.scalars().first()
 
+    @staticmethod
+    def serialize_dashboard(dashboard: StreamDashboard | None) -> dict | None:
+        """Serialize a dashboard model into a plain dict."""
+        if dashboard is None:
+            return None
+
+        session_goals = []
+        if dashboard.session_goals:
+            try:
+                session_goals = json.loads(dashboard.session_goals)
+            except json.JSONDecodeError:
+                session_goals = []
+
+        return {
+            "session_id": dashboard.session_id,
+            "raw_markdown": dashboard.raw_markdown,
+            "stream_title": dashboard.stream_title,
+            "game": dashboard.game,
+            "mood": dashboard.mood,
+            "go_live_notification": dashboard.go_live_notification,
+            "social_post": dashboard.social_post,
+            "session_goals": session_goals,
+            "content_angle": dashboard.content_angle,
+            "created_at": dashboard.created_at.isoformat(),
+            "updated_at": dashboard.updated_at.isoformat(),
+        }
+
     # Chat Message operations
 
     async def add_chat_message(