fix: sync/barcode/memory overhaul + detailed logs + preview + result tracking

- Sync: fix GiteaSync constructor + add push()/pull() methods
- Barcode: two-tab layout matching GUI (mapping + special rules)
- Memory: spec→specification unification, manual add, confidence/price tracking
- Processing: TaskLogHandler captures detailed logs (barcode mapping, unit conversion)
- Preview: fullscreen dialog for file preview (image/Excel) in Orders/Tables/Images
- Detail: per-file log filtering in file pages
- Tasks: result files now per-task, add copy path button
- Config: reactive edited state + save_config fix
- Dashboard: sync task isolation, log limit 10

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

web/backend/routers/sync.py

@@ -1,5 +1,6 @@
 """Cloud sync endpoints (Gitea-based)."""
 
+from concurrent.futures import ThreadPoolExecutor
 from pathlib import Path
 
 from fastapi import APIRouter, HTTPException, Depends, Request
@@ -23,7 +24,30 @@ def _get_sync():
     from app.core.utils.cloud_sync import GiteaSync
     from app.config.settings import ConfigManager
     cfg = ConfigManager()
-    return GiteaSync(cfg)
+    return GiteaSync.from_config(cfg)
+
+
+def _run_sync_in_thread(tm, task_id, action_name, sync_method):
+    """Run a blocking sync operation in a thread."""
+
+    def _run():
+        try:
+            tm.update_progress(task_id, 10, "正在初始化同步...")
+            sync = _get_sync()
+            if sync is None:
+                tm.set_failed(task_id, "Gitea 配置不完整，请先在系统配置中设置 base_url/owner/repo/token")
+                return
+            tm.update_progress(task_id, 30, f"正在{action_name}文件...")
+            tm.add_log(task_id, f"[{action_name}] 开始{action_name}")
+            result = sync_method(sync)
+            tm.add_log(task_id, f"[{action_name}] 完成: {result}")
+            tm.set_completed(task_id, message=f"{action_name}完成")
+        except Exception as e:
+            tm.set_failed(task_id, str(e))
+
+    pool = ThreadPoolExecutor(max_workers=1)
+    pool.submit(_run)
+    pool.shutdown(wait=False)
 
 
 @router.post("/push", response_model=SyncResponse)
@@ -33,21 +57,7 @@ async def sync_push(
 ):
     tm = request.state.task_manager
     task = tm.create_task("推送到云端")
-
-    async def _run():
-        try:
-            tm.update_progress(task.id, 10, "正在初始化同步...")
-            sync = _get_sync()
-            tm.update_progress(task.id, 30, "正在推送文件...")
-            tm.add_log(task.id, "[Push] 开始推送")
-            result = sync.push()
-            tm.add_log(task.id, f"[Push] 完成: {result}")
-            tm.set_completed(task.id, message="推送完成")
-        except Exception as e:
-            tm.set_failed(task.id, str(e))
-
-    import asyncio
-    asyncio.create_task(_run())
+    _run_sync_in_thread(tm, task.id, "Push", lambda s: s.push())
     return SyncResponse(task_id=task.id, status="accepted", message="推送任务已创建")
 
 
@@ -58,21 +68,7 @@ async def sync_pull(
 ):
     tm = request.state.task_manager
     task = tm.create_task("从云端拉取")
-
-    async def _run():
-        try:
-            tm.update_progress(task.id, 10, "正在初始化同步...")
-            sync = _get_sync()
-            tm.update_progress(task.id, 30, "正在拉取文件...")
-            tm.add_log(task.id, "[Pull] 开始拉取")
-            result = sync.pull()
-            tm.add_log(task.id, f"[Pull] 完成: {result}")
-            tm.set_completed(task.id, message="拉取完成")
-        except Exception as e:
-            tm.set_failed(task.id, str(e))
-
-    import asyncio
-    asyncio.create_task(_run())
+    _run_sync_in_thread(tm, task.id, "Pull", lambda s: s.pull())
     return SyncResponse(task_id=task.id, status="accepted", message="拉取任务已创建")
 
 
@@ -83,10 +79,11 @@ async def sync_status(
     try:
         from app.config.settings import ConfigManager
         cfg = ConfigManager()
-        base_url = cfg.get("Gitea", "base_url", fallback="")
-        owner = cfg.get("Gitea", "owner", fallback="")
-        repo = cfg.get("Gitea", "repo", fallback="")
-        enabled = bool(base_url and owner and repo)
+        base_url = cfg.get("Gitea", "base_url", fallback="").strip()
+        owner = cfg.get("Gitea", "owner", fallback="").strip()
+        repo = cfg.get("Gitea", "repo", fallback="").strip()
+        token = cfg.get("Gitea", "token", fallback="").strip()
+        enabled = bool(base_url and owner and repo and token)
         repo_url = f"{base_url}/{owner}/{repo}" if enabled else ""
         return {"enabled": enabled, "repo_url": repo_url}
     except Exception: