fix: delete_document reorder+sync push

fix: upload_folder delete_patterns clear remote

fix: cleanup orphan file on ingest_failed

feat: markdown upload support — app/services/ingestion.py

feat: markdown upload support — app/services/parsers/__init__.py

feat: markdown upload support — app/services/parsers/markdown_parser.py

fix: persist push chroma/ via hf_hub fallback

fix: restore colbert/ + persist after chat

fix: persist verify also checks colbert/ (ENABLE_COLBERT=true puts data there)

fix: persist A 改良版 (verify + 5s debounce + sync push for upload)

fix: independent persist executor + reset pending_push on failure

chore: upload app/services/vector_store.py

chore: upload app/services/embedding.py

chore: upload app/services/reranker.py

chore: upload app/services/chunking.py

chore: upload app/services/ingestion.py

chore: clear old backend before redeploy

chore: clear old backend before redeploy

chore: clear old backend before redeploy

chore: clear old backend before redeploy

chore: clear old backend before redeploy

chore: clear old backend before redeploy

chore: clear old backend before redeploy

chore: clear old backend before redeploy

chore: clear old backend before redeploy

chore: clear old backend before redeploy

chore: clear old backend before redeploy

chore: clear old backend before redeploy

chore: clear old backend before redeploy

fix: enable marker fallback + drop artifacts_path + better parser error

fix: enable marker fallback + drop artifacts_path + better parser error

deploy: backend for appQQQ/ai-chatbot