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>

core/i18n.py

@@ -107,6 +107,12 @@ _EN = {
     "clear": "Clear",
     "no_server_selected": "[!] No server selected",
     "server_not_found": "[!] Server '{alias}' not found",
+    "term_connecting": "Connecting to {alias}...",
+    "term_connected": "Connected to {alias}",
+    "term_disconnected": "Disconnected",
+    "term_reconnecting": "Reconnecting ({n}/{max})...",
+    "term_connect_failed": "Connection failed: {error}",
+    "term_reconnect_fail": "Disconnected (reconnect failed)",
 
     # Files
     "upload": "Upload",
@@ -209,6 +215,21 @@ _EN = {
     "totp_secret_dialog": "TOTP Secret",
     "placeholder_totp_secret": "Base32 secret (optional)",
     "port_out_of_range": "Port must be 1-65535",
+
+    # Monitoring
+    "monitoring": "Monitoring",
+    "check_interval": "Check interval",
+    "skip_check": "Skip status checks",
+    "skip_check_desc": "Don't check this server's availability",
+    "interval_30s": "30s",
+    "interval_60s": "60s",
+    "interval_120s": "2min",
+    "interval_300s": "5min",
+    "status_disabled": "disabled",
+
+    # Network interface
+    "network_interface": "Network Interface",
+    "auto_default": "Auto (default)",
 }
 
 _RU = {
@@ -293,6 +314,12 @@ _RU = {
     "clear": "Очистить",
     "no_server_selected": "[!] Сервер не выбран",
     "server_not_found": "[!] Сервер '{alias}' не найден",
+    "term_connecting": "Подключение к {alias}...",
+    "term_connected": "Подключено к {alias}",
+    "term_disconnected": "Отключено",
+    "term_reconnecting": "Переподключение ({n}/{max})...",
+    "term_connect_failed": "Ошибка подключения: {error}",
+    "term_reconnect_fail": "Отключено (не удалось переподключиться)",
 
     # Files
     "upload": "Загрузить",
@@ -395,6 +422,21 @@ _RU = {
     "totp_secret_dialog": "TOTP-секрет",
     "placeholder_totp_secret": "Base32 секрет (необязательно)",
     "port_out_of_range": "Порт должен быть от 1 до 65535",
+
+    # Monitoring
+    "monitoring": "Мониторинг",
+    "check_interval": "Интервал проверки",
+    "skip_check": "Не проверять доступность",
+    "skip_check_desc": "Исключить сервер из автопроверки",
+    "interval_30s": "30с",
+    "interval_60s": "60с",
+    "interval_120s": "2мин",
+    "interval_300s": "5мин",
+    "status_disabled": "отключено",
+
+    # Network interface
+    "network_interface": "Сетевой интерфейс",
+    "auto_default": "Авто (по умолчанию)",
 }
 
 _ZH = {
@@ -479,6 +521,12 @@ _ZH = {
     "clear": "清除",
     "no_server_selected": "[!] 未选择服务器",
     "server_not_found": "[!] 未找到服务器 '{alias}'",
+    "term_connecting": "正在连接 {alias}...",
+    "term_connected": "已连接到 {alias}",
+    "term_disconnected": "已断开",
+    "term_reconnecting": "重新连接中 ({n}/{max})...",
+    "term_connect_failed": "连接失败：{error}",
+    "term_reconnect_fail": "已断开（重连失败）",
 
     # Files
     "upload": "上传",
@@ -581,6 +629,21 @@ _ZH = {
     "totp_secret_dialog": "TOTP密钥",
     "placeholder_totp_secret": "Base32密钥（可选）",
     "port_out_of_range": "端口必须在1-65535之间",
+
+    # Monitoring
+    "monitoring": "监控",
+    "check_interval": "检查间隔",
+    "skip_check": "跳过状态检查",
+    "skip_check_desc": "不检查此服务器的可用性",
+    "interval_30s": "30秒",
+    "interval_60s": "60秒",
+    "interval_120s": "2分钟",
+    "interval_300s": "5分钟",
+    "status_disabled": "已禁用",
+
+    # Network interface
+    "network_interface": "网络接口",
+    "auto_default": "自动（默认）",
 }
 
 _TRANSLATIONS = {