fix(biji): 优化笔记编辑器自动保存机制并修复相关问题

- 实现了更可靠的自动保存功能，仅在用户停止输入后触发保存操作
- 修复了切换笔记时意外触发自动保存的问题
- 优化了重命名文件后的预览更新逻辑
- 调整了保存成功后的状态清理策略，提高了用户体验

biji-houdaun/src/main/java/com/test/bijihoudaun/controller/ImageCleanupController.java

@@ -1,5 +1,6 @@
 package com.test.bijihoudaun.controller;
 
+import com.test.bijihoudaun.common.response.R;
 import com.test.bijihoudaun.service.ImageCleanupService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.ResponseEntity;
@@ -25,8 +26,8 @@ public class ImageCleanupController {
      */
     @PostMapping("/cleanup-images")
     @PreAuthorize("hasRole('ADMIN')")
-    public ResponseEntity<?> cleanupImages() {
+    public R<?> cleanupImages() {
         int deletedCount = imageCleanupService.cleanupRedundantImages();
-        return ResponseEntity.ok().body("成功清理 " + deletedCount + " 个冗余图片");
+        return R.success("成功清理 " + deletedCount + " 个冗余图片");
     }
 }

biji-houdaun/src/main/java/com/test/bijihoudaun/controller/MarkdownController.java

@@ -93,10 +93,10 @@ public class MarkdownController {
     }
 
     @Operation(summary = "更新Markdown文件标题")
-    @PutMapping("/{id}/title")
+    @PostMapping("/{id}/title")
     public R<MarkdownFile> updateMarkdownTitle(
             @PathVariable Long id,
-            @RequestBody String title) {
+            String title) {
         MarkdownFile updatedFile = markdownFileService.updateMarkdownTitle(id, title);
         if (ObjectUtil.isNotNull(updatedFile)) {
             return R.success(updatedFile);

biji-houdaun/src/main/resources/application-dev.yml

@@ -1,8 +1,8 @@
 spring:
   datasource:
     driver-class-name: org.sqlite.JDBC
-    url: jdbc:sqlite:C:\it\houtaigunli\biji\mydatabase.db
-#    url: jdbc:sqlite:C:\KAIFA\2\mydatabase.db
+#    url: jdbc:sqlite:C:\it\houtaigunli\biji\mydatabase.db
+    url: jdbc:sqlite:C:\KAIFA\2\mydatabase.db
   jpa:
     hibernate:
       ddl-auto: none

biji-houdaun/src/main/resources/application-prod.yml

@@ -15,4 +15,8 @@ spring:
 
 # 禁用Knife4j
 knife4j:
-  enable: false
+  enable: false
+  servlet:
+    multipart:
+      max-file-size: 10MB
+      max-request-size: 10MB