📝 docs: Add documentation

docs/admin/users/ticket.md

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+<div v-pre>
+
+# Ticket Management
+
+View and handle user-submitted tickets with reply and close functions.
+
+## Table Column Description
+
+### Title
+Ticket title.
+
+### User
+User who submitted the ticket.
+
+### Status
+Current ticket status (with color indicator):
+- **Pending Follow-up** (Red) - Newly submitted, awaiting admin
+- **Pending Reply** (Yellow) - Admin replied, awaiting user
+- **Resolved** (Green) - Issue resolved
+- **Closed** (Gray) - Ticket closed
+
+### Updated At
+Last update time.
+
+## Table Operations
+
+### Reply
+Opens ticket conversation drawer:
+- View complete ticket conversation
+- Input reply content
+- After sending, status changes to "Pending Reply"
+
+### Close
+Closes ticket (requires confirmation):
+- Status becomes "Closed"
+- Cannot operate after closure
+- User can still view
+
+### Check
+View closed ticket conversation (read-only).
+
+## Ticket Conversation
+
+After opening ticket, shows conversation interface:
+
+**Conversation Messages**:
+- Ticket description (user's first message)
+- All follow-up records
+- Shows timestamps
+- Distinguishes user/admin messages
+
+**Reply Ticket**:
+1. Input reply in bottom text box
+2. Click send button
+3. Message displays immediately
+4. Status auto-updates to "Pending Reply"
+
+**Auto Refresh**:
+- Auto-refreshes every 5 seconds
+- Gets latest messages
+
+## Filter Functions
+
+### Status Filter
+Select "Closed" to view closed tickets.
+
+## Usage Scenarios
+
+### Scenario 1: Handle New Ticket
+
+1. View "Pending Follow-up" tickets
+2. Click "Reply" button
+3. Read user's question
+4. Input solution
+5. Send reply
+6. User receives notification
+
+### Scenario 2: Close After Resolution
+
+1. Open ticket conversation
+2. Confirm issue resolved
+3. Click "Close" button
+4. Confirm close operation
+5. Ticket marked as closed
+
+### Scenario 3: Multiple Rounds of Conversation
+
+1. Open ticket
+2. View conversation history
+3. Reply with new message
+4. Continue following up until resolved
+
+## Important Notes
+
+1. **Timely Reply**: Pending tickets should be handled promptly
+2. **Conversation Records**: All messages permanently saved
+3. **Auto Refresh**: Conversation auto-updates every 5 seconds
+4. **Close Restriction**: Cannot reply after closure
+5. **Status Change**: Auto-changes to "Pending Reply" after replying
+6. **User Notification**: User receives notification after reply
+7. **View Closed**: Closed tickets viewable but not replyable
+
+</div>