feat: 添加飞书机器人集成 (#13)

* feat: add Feishu bot integration

- Add fsapp.py: Feishu bot webhook handler (root directory)
- Add assets/SETUP_FEISHU.md: Setup guide for Feishu integration
- Add assets/install_python_windows.bat: Windows Python installer script

* fix: 历史注入仅在飞书场景生效，避免混入本地CLI历史

* fix: fsapp调用put_task时传source='feishu'以触发历史注入

---------

Co-authored-by: 张洲嘉 <zhangzhoujia@zhangzhoujiadeMacBook-Air.local>

assets/install_python_windows.bat

@@ -0,0 +1,111 @@
+@echo off
+setlocal enabledelayedexpansion
+title Python One-Click Installer
+color 0A
+
+echo.
+echo ========================================
+echo    Python One-Click Installer (Windows)
+echo ========================================
+echo.
+
+net session >nul 2>&1
+if %errorlevel% neq 0 (
+    echo [!] Administrator privileges required. Restarting with elevation...
+    powershell -Command "Start-Process '%~f0' -Verb RunAs"
+    exit /b
+)
+
+echo [OK] Administrator privileges confirmed
+echo.
+
+python --version >nul 2>&1
+if %errorlevel% equ 0 (
+    echo [OK] Python already installed:
+    python --version
+    echo.
+    choice /C YN /M "Install latest version anyway? (Y=Yes / N=Exit)"
+    if errorlevel 2 goto :end
+)
+
+set PYTHON_VERSION=3.12.9
+set MIRROR_URL=https://npmmirror.com/mirrors/python/3.12.9/python-3.12.9-amd64.exe
+set OFFICIAL_URL=https://www.python.org/ftp/python/3.12.9/python-3.12.9-amd64.exe
+set INSTALLER=%TEMP%\python_installer.exe
+
+echo [*] Preparing to download Python %PYTHON_VERSION%
+echo [*] Trying mirror source first...
+echo.
+
+powershell -NoProfile -Command "[Net.ServicePointManager]::SecurityProtocol=[Net.SecurityProtocolType]::Tls12; $ProgressPreference='SilentlyContinue'; Invoke-WebRequest -Uri '%MIRROR_URL%' -OutFile '%INSTALLER%' -UseBasicParsing"
+
+if not exist "%INSTALLER%" goto :official
+for %%A in ("%INSTALLER%") do if %%~zA lss 1000000 goto :official
+echo [OK] Mirror download complete
+goto :install
+
+:official
+echo [!] Mirror failed, switching to official source...
+powershell -NoProfile -Command "[Net.ServicePointManager]::SecurityProtocol=[Net.SecurityProtocolType]::Tls12; $ProgressPreference='SilentlyContinue'; Invoke-WebRequest -Uri '%OFFICIAL_URL%' -OutFile '%INSTALLER%' -UseBasicParsing"
+
+if not exist "%INSTALLER%" (
+    echo [x] Download failed. Please check your network connection and retry.
+    pause
+    goto :end
+)
+for %%A in ("%INSTALLER%") do if %%~zA lss 1000000 (
+    echo [x] Downloaded file is incomplete. Please check your network and retry.
+    pause
+    goto :end
+)
+echo [OK] Official source download complete
+
+:install
+echo.
+echo [*] Installing Python %PYTHON_VERSION% (this may take 2-5 minutes^)...
+echo.
+
+start /wait "" "%INSTALLER%" /passive InstallAllUsers=1 PrependPath=1 Include_test=0 Include_pip=1
+
+set INSTALL_CODE=%errorlevel%
+del /f /q "%INSTALLER%" >nul 2>&1
+
+if %INSTALL_CODE% neq 0 (
+    echo [x] Installation failed with error code: %INSTALL_CODE%
+    pause
+    goto :end
+)
+
+echo [+] Installation complete!
+echo.
+
+timeout /t 3 /nobreak >nul
+
+set "PATH=C:\Program Files\Python312;C:\Program Files\Python312\Scripts;%PATH%"
+
+python --version >nul 2>&1
+if %errorlevel% equ 0 (
+    echo [OK] Python installed successfully:
+    python --version
+    echo.
+    echo [OK] pip version:
+    pip --version
+    echo.
+    echo [*] Configuring pip mirror (Tsinghua^)...
+    pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple
+    pip config set global.trusted-host pypi.tuna.tsinghua.edu.cn
+    echo.
+    echo [*] Installing requests...
+    pip install requests
+    echo.
+    echo ========================================
+    echo    All done! Open a new terminal to use
+    echo    python and pip commands.
+    echo ========================================
+) else (
+    echo [!] PATH not yet refreshed. Please close this window and open a new terminal.
+)
+
+:end
+echo.
+pause