chore: update dev environment and sync workflow

- Add nil LSP package to devenv.nix
- Add datasets and rich.progress imports to feature_retrieval.py
- Update pyproject.toml ty environment config
- Expand .stignore with cache directories
- Update uv.lock dependency lock
- Update AGENTS.md, adding the content of development environment11

mini-nav/feature_retrieval.py

@@ -3,10 +3,11 @@ from typing import Dict, List, Optional, cast
 
 import torch
 from database import db_manager
+from datasets import load_dataset
 from PIL import Image
 from PIL.PngImagePlugin import PngImageFile
-from torch import nn
 from rich.progress import track
+from torch import nn
 from transformers import (
     AutoImageProcessor,
     AutoModel,
@@ -15,8 +16,6 @@ from transformers import (
 )
 from utils.feature_extractor import extract_batch_features
 
-from datasets import load_dataset
-
 
 def pil_image_to_bytes(image: Image.Image, format: str = "PNG") -> bytes:
     """Convert a PIL Image to bytes in the specified format.