refactor: GPU 서버 재구성 + ChromaDB→Qdrant 마이그레이션

- embed_to_chroma.py → embed_to_qdrant.py 리라이트 (bge-m3 + Qdrant REST API)
- auto_classify.scpt: embed_to_qdrant.py 경로 변경 + sourceChannel 덮어쓰기 버그 수정
- requirements.txt: chromadb/schedule 제거, qdrant-client/flask/gunicorn 추가
- credentials.env.example: GPU_SERVER_IP 항목 추가
- GPU 서버 재구성 계획서 (docs/gpu-restructure.md) + dev-roadmap/commands 통합
- CLAUDE.md, README.md, deploy.md 현행화

GPU 서버 변경사항 (이미 적용됨):
  - Ollama: qwen3.5:9b, id-9b 제거 → bge-m3 + bge-reranker-v2-m3
  - Surya OCR 서비스 (:8400, systemd)
  - Docker + NFS + Komga 이전 (:25600)
  - tk-ai-service: Ollama API → OpenAI API 전환 (MLX 35B)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

applescript/auto_classify.scpt

@@ -70,7 +70,6 @@ except:
 				add custom meta data sourceChannel for "sourceChannel" to theRecord
 				add custom meta data dataOrigin for "dataOrigin" to theRecord
 				add custom meta data (current date) for "lastAIProcess" to theRecord
-				add custom meta data "inbox_route" for "sourceChannel" to theRecord
 
 				-- 7. 대상 도메인 DB로 이동
 				set targetDatabase to missing value
@@ -89,7 +88,7 @@ except:
 
 				-- 8. GPU 서버 벡터 임베딩 비동기 전송
 				set embedScript to (POSIX path of (path to home folder)) & "Documents/code/DEVONThink_my server/venv/bin/python3"
-				set embedPy to (POSIX path of (path to home folder)) & "Documents/code/DEVONThink_my server/scripts/embed_to_chroma.py"
+				set embedPy to (POSIX path of (path to home folder)) & "Documents/code/DEVONThink_my server/scripts/embed_to_qdrant.py"
 				do shell script embedScript & " " & quoted form of embedPy & " " & quoted form of docUUID & " &> /dev/null &"
 
 			on error errMsg