docs(notify): replace terminal notification examples with Feishu webhook example

- Remove iTerm2/Windows Terminal OSC 9, macOS osascript, Linux notify-send, and Windows msg examples (OSC 9 is not compatible with current spawn+stdio:ignore architecture)
- Add Feishu (Lark) webhook notification example in both Chinese and English docs
- Keep the env variable table (DURATION, STATUS, FAIL_REASON, BODY, TITLE) unchanged

Author: Lellansin

docs/configuration.md

@@ -83,53 +83,41 @@ Deep Code 使用 `settings.json` 设置文件进行持久化配置，支持两
 }
 ```
 
-**终端内通知示例（支持 iTerm2 / Windows Terminal）**：
-
-如果你的终端是 iTerm2 或 Windows Terminal，可以直接通过 OSC 9 转义序列弹出终端原生通知，无需额外依赖。创建以下脚本（如 `~/.deepcode/notify.sh`）：
+**飞书 Webhook 通知示例**：
 
 ```bash
 #!/bin/bash
-# iTerm2 / Windows Terminal OSC 9 通知
-printf '\x1b]9;DeepCode: task %s (%ss)\x07' "${STATUS:-completed}" "${DURATION}"
-```
+# 飞书 Webhook 通知
+WEBHOOK_URL="https://open.feishu.cn/open-apis/bot/v2/hook/xxxxxxxxxx"
 
-```json
+curl -s -X POST "$WEBHOOK_URL" \
+  -H "Content-Type: application/json" \
+  -d "$(cat <<EOF
 {
-  "notify": "/Users/you/.deepcode/notify.sh"
+  "msg_type": "interactive",
+  "card": {
+    "header": {
+      "title": {
+        "tag": "plain_text",
+        "content": "DeepCode: task ${STATUS:-completed}"
+      }
+    },
+    "elements": [
+      {
+        "tag": "div",
+        "text": {
+          "tag": "lark_md",
+          "content": "**${TITLE:-Untitled}**\\n耗时 ${DURATION}s"
+        }
+      }
+    ]
+  }
 }
+EOF
+)"
 ```
 
-Windows 用户如使用 Git Bash，上述脚本同样可用；也可创建 `.bat` 脚本：
-
-```batch
-@echo off
-REM Windows Terminal OSC 9 通知
-echo \x1b]9;DeepCode: task %STATUS% (%DURATION%s)\x07
-```
-
-**macOS 系统通知示例**：
-
-```bash
-#!/bin/bash
-# macOS 系统通知
-osascript -e "display notification \"任务已${STATUS:-完成}，耗时 ${DURATION}s\" with title \"DeepCode\""
-```
-
-**Linux 系统通知示例**（需安装 `libnotify-bin`）：
-
-```bash
-#!/bin/bash
-# Linux notify-send 通知
-notify-send "DeepCode" "任务已${STATUS:-完成}，耗时 ${DURATION}s"
-```
-
-**Windows msg 弹窗通知示例**：
-
-```batch
-@echo off
-REM Windows msg 弹窗通知
-msg %USERNAME% "DeepCode: task %STATUS% (%DURATION%s)"
-```
+将 `WEBHOOK_URL` 替换为你的飞书机器人 Webhook 地址即可使用。更多变量参考上表。也适用于其他 webhook 类通知（如 Slack、企业微信），只需修改 JSON payload 格式。
 
 #### `webSearchTool` — 自定义联网搜索
 

docs/configuration_en.md

@@ -83,53 +83,41 @@ The following context is injected as environment variables when the notify scrip
 }
 ```
 
-**Terminal Notification Example (iTerm2 / Windows Terminal)**:
-
-On iTerm2 or Windows Terminal you can use the OSC 9 escape sequence for native terminal notifications with zero dependencies. Create a script (e.g., `~/.deepcode/notify.sh`):
+**Feishu (Lark) Webhook Notification Example**:
 
 ```bash
 #!/bin/bash
-# iTerm2 / Windows Terminal OSC 9 notification
-printf '\x1b]9;DeepCode: task %s (%ss)\x07' "${STATUS:-completed}" "${DURATION}"
-```
+# Feishu Webhook Notification
+WEBHOOK_URL="https://open.feishu.cn/open-apis/bot/v2/hook/xxxxxxxxxx"
 
-```json
+curl -s -X POST "$WEBHOOK_URL" \
+  -H "Content-Type: application/json" \
+  -d "$(cat <<EOF
 {
-  "notify": "/Users/you/.deepcode/notify.sh"
+  "msg_type": "interactive",
+  "card": {
+    "header": {
+      "title": {
+        "tag": "plain_text",
+        "content": "DeepCode: task ${STATUS:-completed}"
+      }
+    },
+    "elements": [
+      {
+        "tag": "div",
+        "text": {
+          "tag": "lark_md",
+          "content": "**${TITLE:-Untitled}**\\nDuration: ${DURATION}s"
+        }
+      }
+    ]
+  }
 }
+EOF
+)"
 ```
 
-Windows users on Git Bash can use the same script; alternatively create a `.bat` script:
-
-```batch
-@echo off
-REM Windows Terminal OSC 9 notification
-echo \x1b]9;DeepCode: task %STATUS% (%DURATION%s)\x07
-```
-
-**macOS System Notification Example**:
-
-```bash
-#!/bin/bash
-# macOS system notification
-osascript -e "display notification \"Task ${STATUS:-completed}, took ${DURATION}s\" with title \"DeepCode\""
-```
-
-**Linux System Notification Example** (requires `libnotify-bin`):
-
-```bash
-#!/bin/bash
-# Linux notify-send notification
-notify-send "DeepCode" "Task ${STATUS:-completed}, took ${DURATION}s"
-```
-
-**Windows msg Popup Notification Example**:
-
-```batch
-@echo off
-REM Windows msg popup notification
-msg %USERNAME% "DeepCode: task %STATUS% (%DURATION%s)"
-```
+Replace `WEBHOOK_URL` with your Feishu bot webhook URL. See the table above for all available variables. This pattern also works for other webhook-based notifications (Slack, WeCom, etc.) — just adjust the JSON payload format.
 
 #### `webSearchTool` — Custom Web Search