refactor: 重构后端结构并迁移前端到 Vue3

app/api/routers/cache.py

@@ -0,0 +1,44 @@
+from fastapi import APIRouter
+
+from app.config import CACHE_DIR
+from app.utils.files import format_size, get_dir_size
+
+
+router = APIRouter(tags=["cache"])
+
+
+@router.get("/api/cache/size")
+async def get_cache_size():
+    if not CACHE_DIR.exists():
+        return {
+            "success": True,
+            "size_bytes": 0,
+            "size_formatted": "0 B",
+            "file_count": 0,
+            "dir_count": 0,
+        }
+
+    total_size = 0
+    file_count = 0
+    dir_count = 0
+
+    try:
+        for item in CACHE_DIR.iterdir():
+            if item.name == "history.json":
+                continue
+            if item.is_dir():
+                dir_count += 1
+            elif item.is_file():
+                file_count += 1
+            total_size += get_dir_size(item)
+    except (PermissionError, OSError) as exc:
+        return {"success": False, "error": str(exc), "size_formatted": "计算失败"}
+
+    return {
+        "success": True,
+        "size_bytes": total_size,
+        "size_formatted": format_size(total_size),
+        "file_count": file_count,
+        "dir_count": dir_count,
+    }
+