show zip packaging progress on download

web_backend.py

@@ -508,7 +508,7 @@ def get_job(job_id):
         return dict(job) if job else None
 
 
-def start_job(kind, worker, owner=None, params=None):
+def start_job(kind, worker, owner=None, params=None, remember_user_task=True):
     job_id = uuid.uuid4().hex[:12]
     owner = normalized_username(owner)
     with JOBS_LOCK:
@@ -526,7 +526,8 @@ def start_job(kind, worker, owner=None, params=None):
             "updatedAt": time.strftime("%Y-%m-%d %H:%M:%S"),
         }
         persist_jobs_locked()
-    set_user_task(owner, kind, job_id)
+    if remember_user_task:
+        set_user_task(owner, kind, job_id)
 
     def run():
         try:
@@ -573,6 +574,15 @@ def serialize_outputs(output_paths, preview_paths):
     }
 
 
+def file_metadata(file_path):
+    file_path = Path(file_path).resolve()
+    return {
+        "path": str(file_path),
+        "name": file_path.name,
+        "size": file_path.stat().st_size,
+    }
+
+
 def prepare_deformation_zip(job_id, target):
     job = get_job(job_id)
     if not job:
@@ -712,6 +722,33 @@ class Handler(BaseHTTPRequestHandler):
                 self.send_json(make_preview(body["inputDir"], body.get("angleDegrees", 12)))
                 return
 
+            if parsed.path == "/api/deformation/package":
+                source_job_id = body["jobId"]
+                target = body.get("target", "all")
+                username = normalized_username(body.get("username"))
+
+                def worker(job_id):
+                    label = "四状态总 ZIP" if target == "all" else "本状态 DICOM ZIP"
+                    set_job(job_id, message=f"正在打包{label}...", progress=10)
+                    zip_path = prepare_deformation_zip(source_job_id, target)
+                    set_job(job_id, message="打包完成，准备下载...", progress=95)
+                    return {"file": file_metadata(zip_path)}
+
+                self.send_json(
+                    start_job(
+                        "zip",
+                        worker,
+                        owner=username,
+                        params={
+                            "sourceJobId": source_job_id,
+                            "target": target,
+                        },
+                        remember_user_task=False,
+                    ),
+                    status=202,
+                )
+                return
+
             if parsed.path == "/api/deformation":
                 input_dir = body["inputDir"]
                 angle_degrees = float(body.get("angleDegrees", 12))