fix(viral-video): 修复Frontend Lint警告——updaters改为useCallback+函数式setState

- updateShot/updateStoryboard/updateOverview/updateConstraints/addConstraint/removeConstraint 用 useCallback + 函数式 setTask 包裹，避免闭包依赖 task.storyboard
- 加 eslint-disable 注释说明 setTask 是稳定 setter，无需加入依赖
- handleInlineCommit 依赖数组补全 updateShot/updateOverview/updateStoryboard（均已稳定）

apps/web/src/pages/viral-video/ViralVideoPage.tsx

@@ -1233,40 +1233,58 @@ const ViralVideoPage: React.FC = () => {
   const [editingField, setEditingField] = useState<string | null>(null)
   const editTaRef = useRef<HTMLTextAreaElement | null>(null)
 
-  const updateShot = (idx: number, patch: Partial<StoryboardShot>) => {
-    if (!task.storyboard) return
-    const shots = task.storyboard.shots.map((s, i) => (i === idx ? { ...s, ...patch } : s))
-    setTask({ storyboard: { ...task.storyboard, shots } })
-  }
-  const updateStoryboard = (patch: Partial<Storyboard>) => {
-    if (!task.storyboard) return
-    setTask({ storyboard: { ...task.storyboard, ...patch } })
-  }
-  const updateOverview = (patch: Partial<Storyboard["overview"]>) => {
-    if (!task.storyboard) return
-    setTask({
-      storyboard: { ...task.storyboard, overview: { ...task.storyboard.overview, ...patch } },
+  const updateShot = useCallback((idx: number, patch: Partial<StoryboardShot>) => {
+    setTask((t) => {
+      if (!t.storyboard) return t
+      const shots = t.storyboard.shots.map((s, i) => (i === idx ? { ...s, ...patch } : s))
+      return { ...t, storyboard: { ...t.storyboard, shots } }
     })
-  }
-  const updateConstraints = (
-    list: "hard_constraints" | "negative_prompts",
-    idx: number,
-    v: string,
-  ) => {
-    if (!task.storyboard) return
-    const arr = [...task.storyboard[list]]
-    arr[idx] = v
-    setTask({ storyboard: { ...task.storyboard, [list]: arr } })
-  }
-  const addConstraint = (list: "hard_constraints" | "negative_prompts") => {
-    if (!task.storyboard) return
-    setTask({ storyboard: { ...task.storyboard, [list]: [...task.storyboard[list], ""] } })
-  }
-  const removeConstraint = (list: "hard_constraints" | "negative_prompts", idx: number) => {
-    if (!task.storyboard) return
-    const arr = task.storyboard[list].filter((_, i) => i !== idx)
-    setTask({ storyboard: { ...task.storyboard, [list]: arr } })
-  }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [])
+  const updateStoryboard = useCallback((patch: Partial<Storyboard>) => {
+    setTask((t) => (t.storyboard ? { ...t, storyboard: { ...t.storyboard, ...patch } } : t))
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [])
+  const updateOverview = useCallback((patch: Partial<Storyboard["overview"]>) => {
+    setTask((t) =>
+      t.storyboard
+        ? {
+            ...t,
+            storyboard: { ...t.storyboard, overview: { ...t.storyboard.overview, ...patch } },
+          }
+        : t,
+    )
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [])
+  const updateConstraints = useCallback(
+    (list: "hard_constraints" | "negative_prompts", idx: number, v: string) => {
+      setTask((t) => {
+        if (!t.storyboard) return t
+        const arr = [...t.storyboard[list]]
+        arr[idx] = v
+        return { ...t, storyboard: { ...t.storyboard, [list]: arr } }
+      })
+    },
+    [], // eslint-disable-line react-hooks/exhaustive-deps
+  )
+  const addConstraint = useCallback((list: "hard_constraints" | "negative_prompts") => {
+    setTask((t) =>
+      t.storyboard
+        ? { ...t, storyboard: { ...t.storyboard, [list]: [...t.storyboard[list], ""] } }
+        : t,
+    )
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [])
+  const removeConstraint = useCallback(
+    (list: "hard_constraints" | "negative_prompts", idx: number) => {
+      setTask((t) => {
+        if (!t.storyboard) return t
+        const arr = t.storyboard[list].filter((_, i) => i !== idx)
+        return { ...t, storyboard: { ...t.storyboard, [list]: arr } }
+      })
+    },
+    [], // eslint-disable-line react-hooks/exhaustive-deps
+  )
 
   /* 内联编辑 helper —— 点击文本 → textarea，blur/Enter 保存 */
   const handleInlineCommit = useCallback(() => {
@@ -1290,7 +1308,7 @@ const ViralVideoPage: React.FC = () => {
       }
     }
     setEditingField(null)
-  }, [])
+  }, [updateShot, updateOverview, updateStoryboard])
 
   const renderCopyResult = () => {
     if (task.uiStep === "step2_generating") {