refactor: 移除冗余代码，重构API路由，整合工作流相关功能，提升代码结构和可维护性

workflow_service/routes/workflow.py

@@ -0,0 +1,98 @@
+import json
+from typing import Optional, List
+
+from fastapi import APIRouter, Request, HTTPException, Path
+from fastapi.responses import JSONResponse
+
+from workflow_service import comfyui_client
+from workflow_service import database
+
+
+workflow_router = APIRouter(
+    prefix="/api/workflow",
+    tags=["Workflow"],
+)
+
+
+@workflow_router.post("", status_code=201)
+async def publish_workflow_endpoint(request: Request):
+    """
+    发布工作流
+    """
+    try:
+        data = await request.json()
+        name, wf_json = data.get("name"), data.get("workflow")
+        if not name or not wf_json:
+            raise HTTPException(
+                status_code=400, detail="`name` and `workflow` fields are required."
+            )
+        await database.save_workflow(name, json.dumps(wf_json))
+        print(f"Workflow '{name}' published.")
+        return JSONResponse(
+            content={"status": "success", "message": f"Workflow '{name}' published."},
+            status_code=201,
+        )
+    except ValueError as e:
+        raise HTTPException(status_code=400, detail=str(e))
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=f"Failed to save workflow: {e}")
+
+
+@workflow_router.get("", response_model=List[dict])
+async def get_all_workflows_endpoint():
+    """
+    获取所有工作流
+    """
+    try:
+        return await database.get_all_workflows()
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=f"Failed to get workflows: {e}")
+
+
+@workflow_router.delete("/{workflow_name:path}")
+async def delete_workflow_endpoint(
+    workflow_name: str = Path(
+        ...,
+        description="The full, unique name of the workflow to delete, e.g., 'my_workflow [20250101120000]'",
+    )
+):
+    """
+    删除工作流
+    """
+    try:
+        success = await database.delete_workflow(workflow_name)
+        if success:
+            return {"status": "deleted", "name": workflow_name}
+        else:
+            raise HTTPException(
+                status_code=404, detail=f"Workflow '{workflow_name}' not found"
+            )
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=f"Failed to delete workflow: {e}")
+
+
+@workflow_router.get("/{base_name:path}")
+async def get_one_workflow_endpoint(base_name: str, version: Optional[str] = None):
+    """
+    获取工作流规范
+    """
+    workflow_data = await database.get_workflow(base_name, version)
+
+    if not workflow_data:
+        detail = (
+            f"Workflow '{base_name}'"
+            + (f" with version '{version}'" if version else " (latest)")
+            + " not found."
+        )
+        raise HTTPException(status_code=404, detail=detail)
+
+    try:
+        workflow = json.loads(workflow_data["workflow_json"])
+        return {
+            "workflow": workflow,
+            "api_spec": comfyui_client.parse_api_spec(workflow),
+        }
+    except Exception as e:
+        raise HTTPException(
+            status_code=500, detail=f"Failed to parse workflow specification: {e}"
+        )