feat(video-workspace): 新增本地上传视频按钮

app/static/public/js/video.js

@@ -3,6 +3,8 @@
   const stopBtn = document.getElementById('stopBtn');
   const clearBtn = document.getElementById('clearBtn');
   const pickCachedVideoBtn = document.getElementById('pickCachedVideoBtn');
+  const uploadWorkVideoBtn = document.getElementById('uploadWorkVideoBtn');
+  const workVideoFileInput = document.getElementById('workVideoFileInput');
   const cacheVideoModal = document.getElementById('cacheVideoModal');
   const closeCacheVideoModalBtn = document.getElementById('closeCacheVideoModalBtn');
   const cacheVideoList = document.getElementById('cacheVideoList');
@@ -90,6 +92,7 @@
   let mergeTargetVideoName = '';
   let mergeCutMsA = 0;
   let mergeCutMsB = 0;
+  let workVideoObjectUrl = '';
 
   function buildHistoryTitle(type, serial) {
     const n = Math.max(1, parseInt(String(serial || '1'), 10) || 1);
@@ -460,6 +463,13 @@
       mergeTargetVideoName = '';
       mergeCutMsA = 0;
       mergeCutMsB = 0;
+      if (workVideoObjectUrl) {
+        try { URL.revokeObjectURL(workVideoObjectUrl); } catch (e) { /* ignore */ }
+        workVideoObjectUrl = '';
+      }
+      if (workVideoFileInput) {
+        workVideoFileInput.value = '';
+      }
       if (enterEditBtn) enterEditBtn.disabled = true;
       closeEditPanel();
       updateMergeLabels();
@@ -2316,6 +2326,28 @@
     });
   }
 
+  if (uploadWorkVideoBtn && workVideoFileInput) {
+    uploadWorkVideoBtn.addEventListener('click', () => {
+      workVideoFileInput.click();
+    });
+    workVideoFileInput.addEventListener('change', () => {
+      const file = workVideoFileInput.files && workVideoFileInput.files[0];
+      if (!file) return;
+      if (workVideoObjectUrl) {
+        try { URL.revokeObjectURL(workVideoObjectUrl); } catch (e) { /* ignore */ }
+        workVideoObjectUrl = '';
+      }
+      const localUrl = URL.createObjectURL(file);
+      workVideoObjectUrl = localUrl;
+      selectedVideoItemId = `upload-${Date.now()}`;
+      selectedVideoUrl = localUrl;
+      if (enterEditBtn) enterEditBtn.disabled = false;
+      bindEditVideoSource(localUrl);
+      openEditPanel();
+      toast('本地视频已载入工作区', 'success');
+    });
+  }
+
   if (pickMergeVideoBtn) {
     pickMergeVideoBtn.addEventListener('click', async () => {
       try {

app/static/public/pages/video.html

@@ -139,6 +139,8 @@
               <div class="card-title">视频工作区</div>
               <div class="preview-actions">
                 <button id="pickCachedVideoBtn" class="geist-button-outline text-xs px-3">选择视频</button>
+                <button id="uploadWorkVideoBtn" class="geist-button-outline text-xs px-3" type="button">上传视频</button>
+                <input id="workVideoFileInput" class="ref-file-input" type="file" accept="video/*">
                 <button id="clearBtn" class="geist-button-outline text-xs px-3">清空</button>
               </div>
             </div>
@@ -316,7 +318,7 @@
   <script src="/static/common/js/pwa.js?v=0.1.1"></script>
   <script src="/static/vendor/ffmpeg/ffmpeg.js?v=0.1.0"></script>
   <script src="/static/vendor/ffmpeg/ffmpeg-util.js?v=0.1.0"></script>
-  <script src="/static/public/js/video.js?v=0.5.19"></script>
+  <script src="/static/public/js/video.js?v=0.5.20"></script>
 </body>
 
 </html>