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/memory.py

@@ -18,18 +18,31 @@ _excel_source = str(_project_root / "templates" / "商品资料.xlsx")
 class MemoryItem(BaseModel):
     barcode: str
     name: str
-    spec: Optional[str] = None
+    specification: Optional[str] = None
     unit: Optional[str] = None
     price: Optional[float] = None
+    avg_price: Optional[float] = None
+    min_price: Optional[float] = None
+    max_price: Optional[float] = None
+    price_count: int = 0
     confidence: int = 0
     source: str = "ocr"
     last_used: Optional[str] = None
     use_count: int = 0
 
 
+class MemoryCreate(BaseModel):
+    barcode: str
+    name: Optional[str] = ""
+    specification: Optional[str] = None
+    unit: Optional[str] = None
+    price: Optional[float] = None
+    confidence: int = 50
+
+
 class MemoryUpdate(BaseModel):
     name: Optional[str] = None
-    spec: Optional[str] = None
+    specification: Optional[str] = None
     unit: Optional[str] = None
     price: Optional[float] = None
     confidence: Optional[int] = None
@@ -51,9 +64,13 @@ def _row_to_item(row: Dict) -> MemoryItem:
     return MemoryItem(
         barcode=row.get("barcode", ""),
         name=row.get("name", ""),
-        spec=row.get("spec"),
+        specification=row.get("specification"),
         unit=row.get("unit"),
         price=row.get("price"),
+        avg_price=row.get("avg_price"),
+        min_price=row.get("min_price"),
+        max_price=row.get("max_price"),
+        price_count=row.get("price_count", 0),
         confidence=row.get("confidence", 0),
         source=row.get("source", "ocr"),
         last_used=row.get("last_used"),
@@ -99,6 +116,25 @@ async def get_memory(
     return product
 
 
+@router.post("")
+async def create_memory(
+    body: MemoryCreate,
+    current_user: dict = Depends(get_current_user),
+):
+    db = _get_db()
+    existing = db.get_memory(body.barcode)
+    if existing:
+        raise HTTPException(409, f"条码 {body.barcode} 已存在，请使用编辑功能")
+    db.learn_from_product({
+        "barcode": body.barcode,
+        "name": body.name or "",
+        "specification": body.specification or "",
+        "unit": body.unit or "",
+        "price": body.price or 0,
+    }, source="user_confirmed")
+    return {"message": f"已创建记忆记录 {body.barcode}"}
+
+
 @router.put("/{barcode}")
 async def update_memory(
     barcode: str,