Fix: accept task_code/milestone_code as identifiers, add /config/status endpoint

- All /tasks/{task_id} endpoints now accept both numeric id and task_code string
- All /milestones/{milestone_id} endpoints (misc.py) now accept both numeric id and milestone_code
- Added _resolve_task() and _resolve_milestone() helpers
- GET /config/status reads initialization state from config volume (no wizard dependency)
- MilestoneResponse schema now includes milestone_code field
- Comments and worklog endpoints also accept task_code

app/api/routers/comments.py

@@ -51,8 +51,16 @@ def create_comment(comment: schemas.CommentCreate, db: Session = Depends(get_db)
 
 
 @router.get("/tasks/{task_id}/comments", response_model=List[schemas.CommentResponse])
-def list_comments(task_id: int, db: Session = Depends(get_db)):
-    return db.query(models.Comment).filter(models.Comment.task_id == task_id).all()
+def list_comments(task_id: str, db: Session = Depends(get_db)):
+    """List comments for a task. task_id can be numeric id or task_code."""
+    try:
+        tid = int(task_id)
+    except (ValueError, TypeError):
+        task = db.query(Task).filter(Task.task_code == task_id).first()
+        if not task:
+            raise HTTPException(status_code=404, detail="Task not found")
+        tid = task.id
+    return db.query(models.Comment).filter(models.Comment.task_id == tid).all()
 
 
 @router.patch("/comments/{comment_id}", response_model=schemas.CommentResponse)