avoid duplicate DICOM zip compression

web_backend.py

@@ -407,6 +407,40 @@ def zip_folder(source_dir, zip_path):
     return zip_path
 
 
+def zip_result_bundle(zip_path, state_zips, preview_paths):
+    zip_path = Path(zip_path).resolve()
+    safe_mkdir(zip_path.parent)
+    if zip_path.exists():
+        zip_path.unlink()
+
+    comparison_path = Path(preview_paths["comparison"]).resolve()
+    screenshots_dir = Path(preview_paths["screenshots"]).resolve()
+
+    with zipfile.ZipFile(zip_path, "w", compression=zipfile.ZIP_DEFLATED) as archive:
+        for state_key, state_zip in state_zips.items():
+            source_zip = Path(state_zip).resolve()
+            archive.write(
+                source_zip,
+                f"dicom_zips/{source_zip.name}",
+                compress_type=zipfile.ZIP_STORED,
+            )
+
+        if comparison_path.exists():
+            archive.write(
+                comparison_path,
+                f"previews/{comparison_path.name}",
+            )
+
+        if screenshots_dir.exists():
+            for file_path in screenshots_dir.rglob("*"):
+                if file_path.is_file():
+                    archive.write(
+                        file_path,
+                        Path("previews/process_screenshots") / file_path.relative_to(screenshots_dir),
+                    )
+    return zip_path
+
+
 def set_job(job_id, **updates):
     with JOBS_LOCK:
         job = JOBS[job_id]
@@ -612,10 +646,11 @@ class Handler(BaseHTTPRequestHandler):
                             output_paths[state_key],
                             job_root / f"{state_key}_{job_id}.zip",
                         )
-                    set_job(job_id, message="正在打包四状态输出 ZIP...")
-                    zip_path = zip_folder(
-                        output_dir,
+                    set_job(job_id, message="正在整理四状态总 ZIP...")
+                    zip_path = zip_result_bundle(
                         job_root / f"head_ct_morph_{job_id}.zip",
+                        state_zips,
+                        preview_paths,
                     )
                     return serialize_outputs(output_paths, preview_paths, zip_path, state_zips)