feat(context): Decouple context composition from files and media

src/app_controller.py

@@ -177,7 +177,8 @@ class AppController:
   self.disc_entries: List[Dict[str, Any]] = []
   self.ui_active_persona: str = ""
   self.disc_roles: List[str] = []
-  self.files: List[str] = []
+  self.files: List[models.FileItem] = []
+  self.context_files: List[models.FileItem] = []
   self.screenshots: List[str] = []
   self.event_queue: events.AsyncEventQueue = events.AsyncEventQueue()
   self._loop_thread: Optional[threading.Thread] = None
@@ -3286,6 +3287,7 @@ class AppController:
    # Use current full markdown context for the track execution
    track_id_param = track.id
    flat = project_manager.flat_config(self.project, self.active_discussion, track_id=track_id_param)
+   flat.setdefault("files", {})["paths"] = self.context_files
    full_md, _, _ = aggregate.run(flat)
    # Start the engine in a separate thread
    threading.Thread(target=engine.run, kwargs={"md_content": full_md}, daemon=True).start()
@@ -3506,4 +3508,4 @@ class AppController:
    if self.active_track:
     self.active_tickets = [asdict(t) if not isinstance(t, dict) else t for t in self.active_track.tickets]
    else:
-    self.active_tickets = []
+    self.active_tickets = []]