Refine gitignore to only exclude root-level test files

(cherry picked from commit a790f081dc)

.gitignore

@@ -9,23 +9,10 @@ __pycache__/
 
 # Virtual Environment
 .venv/
-env/
 venv/
-*.env*
-.env_example
 
-# BUILT web UI assets
-# When building the UI in CI, the build artifacts are generated by Vite
-# and are not source-controlled.
-lightrag_webui/dist/
-lightrag_webui/build/
-
-# When using the python API embedded UI, ignore generated JS & CSS
-lightrag/api/webui/assets/*.js
-lightrag/api/webui/assets/*.js.map
-lightrag/api/webui/assets/*.css
-# Ignore the whole assets directory (build artifacts / vendor bundles)
-lightrag/api/webui/assets/
+# Enviroment Variable Files
+.env
 
 # Build / Distribution
 dist/
@@ -48,20 +35,6 @@ log/
 .history/
 temp/
 
-# Model weights and caches (do not commit large models or checkpoints)
-models/
-checkpoints/
-weights/
-*.ckpt
-*.pt
-*.bin
-*.safetensors
-*.h5
-model_cache/
-.cache/huggingface/
-transformers_cache/
-huggingface/
-
 # IDE / Editor Files
 .idea/
 .vscode/
@@ -73,19 +46,12 @@ neo4jWorkDir/
 
 # Data & Storage
 inputs/
+output/
 rag_storage/
-examples/input/
-examples/output/
-output*/
 data/
 
-.coverage
-coverage.xml
-htmlcov/
-.ipynb_checkpoints/
-.pytype/
-pip-wheel-metadata/
-pip-log.txt
+# Evaluation results
+lightrag/evaluation/results/
 
 # Miscellaneous
 .DS_Store
@@ -94,15 +60,15 @@ ignore_this.txt
 *.ignore.*
 
 # Project-specific files
-dickens*/
-book.txt
-LightRAG.pdf
+/dickens*/
+/book.txt
 download_models_hf.py
-lightrag-dev/
-gui/
 
-# unit-test files
+# Frontend build output (built during PyPI release)
+/lightrag/api/webui/
+
+# temporary test files in project root
+/test_*
 
 # Cline files
 memory-bank
-memory-bank/