feat: add checkpoint hash filtering and navigation

- Add checkpoint hash parameter parsing to backend routes
- Implement checkpoint hash filtering in frontend API client
- Add click navigation from recipe modal to checkpoints page
- Update checkpoint items to use pointer cursor for better UX

Checkpoint items in recipe modal are now clickable and will navigate to the checkpoints page with appropriate hash filtering applied. This improves user workflow when wanting to view checkpoint details from recipes.

locales/zh-CN.json

@@ -528,6 +528,9 @@
     },
     "recipes": {
         "title": "LoRA 配方",
+        "actions": {
+            "sendCheckpoint": "发送到 ComfyUI"
+        },
         "controls": {
             "import": {
                 "action": "导入",
@@ -1254,6 +1257,9 @@
             "cannotSend": "无法发送配方：缺少配方 ID",
             "sendFailed": "发送配方到工作流失败",
             "sendError": "发送配方到工作流出错",
+            "missingCheckpointPath": "缺少检查点路径",
+            "missingCheckpointInfo": "缺少检查点信息",
+            "downloadCheckpointFailed": "下载检查点失败：{message}",
             "cannotDelete": "无法删除配方：缺少配方 ID",
             "deleteConfirmationError": "显示删除确认出错",
             "deletedSuccessfully": "配方删除成功",