feat: update AGENTS.md with new components and API details; enhance FileContent.vue with Plyr video support; add VideoPlayer.vue for video playback; improve MilkdownEditor.vue for video file handling; refine TTSPlayer.vue volume controls; optimize settings store for localStorage; implement video upload support in uploadBlock.js; create utility functions for Plyr player management.

src/composables/useFileSystem.js

@@ -216,17 +216,13 @@ export function useFileSystem() {
     return nextRecord
   }
 
+  // --- Async operations with unified error handling ---
+
   async function load() {
-    loading.value = true
-    try {
-      records.value = await fetchDocNodes()
-      error.value = null
-    } catch (err) {
-      error.value = err instanceof Error && err.message ? err.message : '读取文档空间失败，请稍后重试'
-      records.value = []
-    } finally {
-      loading.value = false
-    }
+    loading.value = true; records.value = []
+    try { records.value = await fetchDocNodes() }
+    catch (err) { error.value = err?.message || '读取文档空间失败，请稍后重试' }
+    finally { loading.value = false }
   }
 
   async function createFile(parentId, name, content = '') {
@@ -236,47 +232,21 @@ export function useFileSystem() {
     }
     try {
       const node = await createDocTextFile(name, parentId || null, content)
-      upsertRecord(node)
-      if (parentId) {
-        const next = new Set(expandedIds.value)
-        next.add(parentId)
-        expandedIds.value = next
-      }
-      selectedId.value = node.id
-      error.value = null
+      upsertRecord(node); selectedId.value = node.id
+      if (parentId) { expandedIds.value = new Set([...expandedIds.value, parentId]) }
       return true
-    } catch (err) {
-      error.value = err instanceof Error && err.message ? err.message : '创建文件失败'
-      return false
-    }
+    } catch (err) { error.value = err?.message || '创建文件失败'; return false }
   }
 
   async function updateFile(id, nextValue, options = {}) {
     const file = records.value.find((item) => item.id === id && item.type === 'file')
     if (!file) return false
     try {
-      let node
-      if (nextValue instanceof Blob) {
-        const filename = options.name || file.name
-        const upload = nextValue instanceof File
-          ? nextValue
-          : new File([nextValue], filename, { type: options.mimeType || nextValue.type || file.mimeType || '' })
-        node = await replaceDocBlob(id, upload)
-      } else {
-        const content = String(options.content ?? nextValue ?? '')
-        node = await updateDocNode(id, {
-          name: options.name || file.name,
-          content,
-        })
-      }
-      upsertRecord(node)
-      clearBlobCache(id)
-      error.value = null
-      return true
-    } catch (err) {
-      error.value = err instanceof Error && err.message ? err.message : '保存文件失败'
-      return false
-    }
+      const node = nextValue instanceof Blob
+        ? await replaceDocBlob(id, nextValue instanceof File ? nextValue : new File([nextValue], options.name || file.name, { type: options.mimeType || nextValue.type || '' }))
+        : await updateDocNode(id, { name: options.name || file.name, content: String(options.content ?? nextValue) })
+      upsertRecord(node); clearBlobCache(id); return true
+    } catch (err) { error.value = err?.message || '保存文件失败'; return false }
   }
 
   async function createFolder(parentId, name) {
@@ -286,19 +256,10 @@ export function useFileSystem() {
     }
     try {
       const node = await createDocFolder(name, parentId || null)
-      upsertRecord(node)
-      if (parentId) {
-        const next = new Set(expandedIds.value)
-        next.add(parentId)
-        expandedIds.value = next
-      }
-      selectedId.value = node.id
-      error.value = null
+      upsertRecord(node); selectedId.value = node.id
+      if (parentId) expandedIds.value = new Set([...expandedIds.value, parentId])
       return true
-    } catch (err) {
-      error.value = err instanceof Error && err.message ? err.message : '创建文件夹失败'
-      return false
-    }
+    } catch (err) { error.value = err?.message || '创建文件夹失败'; return false }
   }
 
   async function rename(id, newName) {
@@ -306,14 +267,8 @@ export function useFileSystem() {
     if (!node) return false
     try {
       const updated = await updateDocNode(id, { name: newName })
-      upsertRecord(updated)
-      clearBlobCache(id)
-      error.value = null
-      return true
-    } catch (err) {
-      error.value = err instanceof Error && err.message ? err.message : '重命名失败'
-      return false
-    }
+      upsertRecord(updated); clearBlobCache(id); return true
+    } catch (err) { error.value = err?.message || '重命名失败'; return false }
   }
 
   function collectDescendantIds(id) {