v1.5.0: network interface binding, SSH fixes, terminal, release script

- Add network interface selection per server (VPN/multi-NIC support)
- Fix "Install Everything" button hanging on error
- Add interactive SSH terminal with PTY (pyte + xterm-256color)
- Add release.py for automated versioning and changelog generation
- Add CLAUDE.md with project instructions
- Add screenshots and release binaries for v1.1–v1.4

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

README.md

@@ -53,7 +53,7 @@ pip install pyinstaller
 python build.py
 ```
 
-Output goes to `releases/ServerManager-v1.3.0-{platform}.exe`
+Output goes to `releases/ServerManager-v1.5.0-{platform}.exe`
 
 ### Usage
 
@@ -223,7 +223,7 @@ pip install pyinstaller
 python build.py
 ```
 
-Результат в `releases/ServerManager-v1.3.0-{платформа}.exe`
+Результат в `releases/ServerManager-v1.5.0-{платформа}.exe`
 
 ### Использование
 
@@ -363,7 +363,7 @@ pip install pyinstaller
 python build.py
 ```
 
-输出至 `releases/ServerManager-v1.3.0-{平台}.exe`
+输出至 `releases/ServerManager-v1.5.0-{平台}.exe`
 
 ### 使用方法