feat(M01): POST /api/m01/logic/flow — 저장 안 한 고친 줄(옛 편집기)을 흐름으로 변환해 돌려줌(쓰기 없음)

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KmELpdXFDRZHhfbGuRhSmL

M01_MasterData/M01_MasterData_Router.py

@@ -250,6 +250,18 @@ def get_logic_flow(key: str, file: str = "") -> dict:
     return _call(flow.get_flow, file, key)
 
 
+class FlowDraft(BaseModel):
+    file: str = ""
+    key: str = ""
+    row: dict[str, Any]
+
+
+@router.post("/logic/flow")
+def post_logic_flow(body: FlowDraft) -> dict:
+    """저장 안 한 고친 줄(옛 편집기) → 흐름 변환 — {flow, converted, notes} · 쓰기 없음."""
+    return _call(flow.get_flow, body.file, body.key, body.row)
+
+
 @router.post("/logic/new")
 def post_logic_new(body: NewLogic) -> dict:
     return _call(make.logic_new, body.logic, body.owner)