feat(mma): Implement track-scoped state persistence and configure sub-agents

project_manager.py

@@ -240,3 +240,30 @@ def flat_config(proj: dict, disc_name: str | None = None) -> dict:
             "history": disc_data.get("history", []),
         },
     }
+
+
+# ── track state persistence ─────────────────────────────────────────────────
+
+def save_track_state(track_id: str, state: 'TrackState', base_dir: str | Path = "."):
+    """
+    Saves a TrackState object to conductor/tracks/<track_id>/state.toml.
+    """
+    track_dir = Path(base_dir) / "conductor" / "tracks" / track_id
+    track_dir.mkdir(parents=True, exist_ok=True)
+    state_file = track_dir / "state.toml"
+    data = clean_nones(state.to_dict())
+    with open(state_file, "wb") as f:
+        tomli_w.dump(data, f)
+
+
+def load_track_state(track_id: str, base_dir: str | Path = ".") -> 'TrackState':
+    """
+    Loads a TrackState object from conductor/tracks/<track_id>/state.toml.
+    """
+    from models import TrackState
+    state_file = Path(base_dir) / "conductor" / "tracks" / track_id / "state.toml"
+    if not state_file.exists():
+        return None
+    with open(state_file, "rb") as f:
+        data = tomllib.load(f)
+    return TrackState.from_dict(data)