chore: 注释掉项目设置弹窗的图片嵌入选项，移除顶部导航的保存和打开项目按钮

1.  将ProjectSetupModal中的图片嵌入配置区块临时注释
2.  从Header组件中删除重复的保存工作流和打开项目按钮

src/components/Header.tsx

@@ -330,22 +330,6 @@ export function Header() {
                       />
                     </svg>
                   </button>
-                  <button
-                    onClick={() => setShowWorkflowSaveModal(true)}
-                    className="p-1.5 text-neutral-400 hover:text-neutral-200 hover:bg-neutral-800 rounded transition-colors"
-                    title={t("header.saveWorkflow")}
-                  >
-                    <svg
-                      className="w-4 h-4"
-                      fill="none"
-                      viewBox="0 0 24 24"
-                      stroke="currentColor"
-                      strokeWidth={1.7}
-                    >
-                      <path strokeLinecap="round" strokeLinejoin="round" d="M12 16.5V4.5m0 0-4 4m4-4 4 4" />
-                      <path strokeLinecap="round" strokeLinejoin="round" d="M4.5 14.25v3.75A1.5 1.5 0 0 0 6 19.5h12a1.5 1.5 0 0 0 1.5-1.5v-3.75" />
-                    </svg>
-                  </button>
                   {saveDirectoryPath && !isBrowserFileSystemPath(saveDirectoryPath) && (
                     <button
                       onClick={handleOpenDirectory}
@@ -367,25 +351,6 @@ export function Header() {
                       </svg>
                     </button>
                   )}
-                  <button
-                    onClick={handleOpenFile}
-                    className="p-1.5 text-neutral-400 hover:text-neutral-200 hover:bg-neutral-800 rounded transition-colors"
-                    title={t("header.openProject")}
-                  >
-                    <svg
-                      className="w-4 h-4"
-                      fill="none"
-                      viewBox="0 0 24 24"
-                      stroke="currentColor"
-                      strokeWidth={2}
-                    >
-                      <path
-                        strokeLinecap="round"
-                        strokeLinejoin="round"
-                        d="M2.25 12.75V12A2.25 2.25 0 014.5 9.75h15A2.25 2.25 0 0121.75 12v.75m-8.69-6.44l-2.12-2.12a1.5 1.5 0 00-1.061-.44H4.5A2.25 2.25 0 002.25 6v12a2.25 2.25 0 002.25 2.25h15A2.25 2.25 0 0021.75 18V9a2.25 2.25 0 00-2.25-2.25h-5.379a1.5 1.5 0 01-1.06-.44z"
-                      />
-                    </svg>
-                  </button>
                 </div>
 
                 {settingsButtons}
@@ -416,41 +381,6 @@ export function Header() {
                       />
                     </svg>
                   </button>
-                  <button
-                    onClick={() => setShowWorkflowSaveModal(true)}
-                    className="p-1.5 text-neutral-400 hover:text-neutral-200 hover:bg-neutral-800 rounded transition-colors"
-                    title={t("header.saveWorkflow")}
-                  >
-                    <svg
-                      className="w-4 h-4"
-                      fill="none"
-                      viewBox="0 0 24 24"
-                      stroke="currentColor"
-                      strokeWidth={1.7}
-                    >
-                      <path strokeLinecap="round" strokeLinejoin="round" d="M12 16.5V4.5m0 0-4 4m4-4 4 4" />
-                      <path strokeLinecap="round" strokeLinejoin="round" d="M4.5 14.25v3.75A1.5 1.5 0 0 0 6 19.5h12a1.5 1.5 0 0 0 1.5-1.5v-3.75" />
-                    </svg>
-                  </button>
-                  <button
-                    onClick={handleOpenFile}
-                    className="p-1.5 text-neutral-400 hover:text-neutral-200 hover:bg-neutral-800 rounded transition-colors"
-                    title={t("header.openProject")}
-                  >
-                    <svg
-                      className="w-4 h-4"
-                      fill="none"
-                      viewBox="0 0 24 24"
-                      stroke="currentColor"
-                      strokeWidth={2}
-                    >
-                      <path
-                        strokeLinecap="round"
-                        strokeLinejoin="round"
-                        d="M2.25 12.75V12A2.25 2.25 0 014.5 9.75h15A2.25 2.25 0 0121.75 12v.75m-8.69-6.44l-2.12-2.12a1.5 1.5 0 00-1.061-.44H4.5A2.25 2.25 0 002.25 6v12a2.25 2.25 0 002.25 2.25h15A2.25 2.25 0 0021.75 18V9a2.25 2.25 0 00-2.25-2.25h-5.379a1.5 1.5 0 01-1.06-.44z"
-                      />
-                    </svg>
-                  </button>
                 </div>
 
                 {settingsButtons}

src/components/ProjectSetupModal.tsx

@@ -595,7 +595,7 @@ export function ProjectSetupModal({
               </p>
             </div>
 
-            <div className="pt-2 border-t border-neutral-700">
+            {/* <div className="pt-2 border-t border-neutral-700">
               <label className="flex items-center justify-between gap-3 cursor-pointer">
                 <div>
                   <span className="text-sm text-neutral-200">{t("project.embedImages")}</span>
@@ -613,7 +613,7 @@ export function ProjectSetupModal({
                   <span className={`inline-block h-3.5 w-3.5 rounded-full bg-white transition-transform ${!externalStorage ? "translate-x-[18px]" : "translate-x-[3px]"}`} />
                 </button>
               </label>
-            </div>
+            </div> */}
 
             <div className="pt-2 border-t border-neutral-700">
               <label className="flex items-center justify-between gap-3 cursor-pointer">