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+# Processing Flow + UI/UX Enhancement Plan
+
+> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development to implement this plan task-by-task.
+
+**Goal:** Enhance task processing flow (retry, multi-task, logs) and add responsive mobile UI.
+
+**Architecture:** Frontend-only changes for most tasks. One backend endpoint for task retry. Processing store refactored from single-task to multi-task model.
+
+**Tech Stack:** Vue 3.4+, TypeScript, Element Plus, Pinia
+
+---
+
+## Phase 2: Processing Flow Enhancement
+
+### Task 1: Multi-task monitoring in processing store
+
+**Files:**
+- Modify: `web/frontend/src/stores/processing.ts`
+
+**Description:** Refactor the store from single `currentTask` to a `Map<taskId, TaskInfo>` supporting multiple concurrent tasks. Keep backward compatibility by exposing `currentTask` as the most recent task.
+
+- [ ] Add `activeTasks: ref<Map<string, TaskInfo>>()` state
+- [ ] Refactor `connectWebSocket` to register tasks in `activeTasks`
+- [ ] Expose `activeTasks` computed (array of active tasks sorted by start time)
+- [ ] Keep `currentTask` as computed getter of the latest task
+- [ ] Add `removeTask(taskId)` action to dismiss completed/failed tasks
+- [ ] Add `retryTask(taskId)` action that calls `POST /api/tasks/{id}/retry`
+
+### Task 2: Backend task retry endpoint
+
+**Files:**
+- Modify: `web/backend/routers/tasks.py`
+- Modify: `web/backend/services/task_manager.py`
+
+**Description:** Add `POST /api/tasks/{id}/retry` endpoint that reads the original task's stored parameters and re-creates it.
+
+- [ ] Add `metadata: Optional[dict]` field to `Task` dataclass (stores original request params)
+- [ ] Store endpoint + body in task metadata when creating tasks in `processing.py`
+- [ ] Add `retry_task` method to `TaskManager` that creates a new task from stored metadata
+- [ ] Add `POST /api/tasks/{id}/retry` endpoint in `tasks.py`
+
+### Task 3: Dashboard multi-task cards
+
+**Files:**
+- Modify: `web/frontend/src/views/Dashboard.vue`
+
+**Description:** Replace the single progress card with a card list showing all active tasks. Each card shows: task name, progress bar, status tag, error message (if failed), retry button (if failed), dismiss button (if completed/failed).
+
+- [ ] Replace single progress card with `v-for` over `activeTasks`
+- [ ] Each card: name, progress bar, status tag, message
+- [ ] Failed cards: red error panel + "重试" button
+- [ ] Completed cards: green success + "查看结果" + dismiss button
+- [ ] Show "无活跃任务" placeholder when empty
+
+### Task 4: Expand Dashboard log panel
+
+**Files:**
+- Modify: `web/frontend/src/views/Dashboard.vue`
+
+**Description:** Increase log display from 10 to 50 lines. Add "查看全部日志" link to Tasks page.
+
+- [ ] Change `slice(-10)` to `slice(-50)` for log lines
+- [ ] Add "查看全部日志" button linking to `/tasks`
+- [ ] Increase log panel max-height from 200px to 350px
+
+### Task 5: Error details in Dashboard
+
+**Files:**
+- Modify: `web/frontend/src/views/Dashboard.vue`
+
+**Description:** When a task fails, show the error message prominently in the task card.
+
+- [ ] In the task card template, show `task.error` in an `el-alert` with type="error" when status is "failed"
+- [ ] Error message should be selectable/copyable
+
+---
+
+## Phase 3: UI/UX Optimization
+
+### Task 6: Mobile sidebar drawer
+
+**Files:**
+- Modify: `web/frontend/src/views/Layout.vue`
+
+**Description:** Convert the fixed sidebar to an `el-drawer` on screens < 768px. Add hamburger menu button in topbar.
+
+- [ ] Add `isMobile` ref + resize listener with 768px breakpoint
+- [ ] On mobile: hide `el-aside`, show hamburger button in topbar
+- [ ] Use `el-drawer` for sidebar navigation on mobile
+- [ ] Close drawer on route change
+- [ ] Clean up resize listener on unmount
+
+### Task 7: Layout responsive styles
+
+**Files:**
+- Modify: `web/frontend/src/views/Layout.vue`
+
+**Description:** Add @media queries for the layout content area.
+
+- [ ] `@media (max-width: 768px)`: reduce content padding, adjust topbar
+- [ ] `@media (max-width: 480px)`: further reduce spacing
+- [ ] Ensure content doesn't overflow on small screens
+
+### Task 8: Tasks page responsive
+
+**Files:**
+- Modify: `web/frontend/src/views/Tasks.vue`
+
+**Description:** Make the Tasks page work on mobile.
+
+- [ ] `@media (max-width: 768px)`: stat cards go 2x2 grid
+- [ ] `@media (max-width: 640px)`: stat cards go single column
+- [ ] `@media (max-width: 768px)`: table columns hide non-essential ones
+- [ ] Filters stack vertically on mobile
+
+### Task 9: Logs page responsive
+
+**Files:**
+- Modify: `web/frontend/src/views/Logs.vue`
+
+**Description:** Make the Logs page work on mobile.
+
+- [ ] Same stat card responsive pattern as Tasks
+- [ ] `@media (max-width: 768px)`: table columns hide non-essential ones
+- [ ] Filters stack vertically on mobile
+
+### Task 10: File views responsive
+
+**Files:**
+- Modify: `web/frontend/src/views/files/Images.vue`
+- Modify: `web/frontend/src/views/files/Tables.vue`
+- Modify: `web/frontend/src/views/files/Orders.vue`
+
+**Description:** Make file list pages work on mobile.
+
+- [ ] `@media (max-width: 768px)`: header-actions wrap to multiple lines
+- [ ] Table hides non-essential columns on small screens
+- [ ] Action buttons collapse into a dropdown on mobile