feat: multi-type server support — SQL, Redis, Grafana, Prometheus, Telnet, WinRM, RDP/VNC

Full implementation of multi-type server management across GUI and CLI:

New clients: SQLClient (MariaDB/MSSQL/PostgreSQL), RedisClient, GrafanaClient,
PrometheusClient, TelnetSession, WinRMClient, RemoteDesktopLauncher.

New GUI tabs: QueryTab (SQL editor + Treeview), RedisTab (console + history),
GrafanaTab (dashboards + alerts), PrometheusTab (PromQL + targets),
PowershellTab (PS/CMD), LaunchTab (RDP/VNC external client).

Infrastructure: TAB_REGISTRY for conditional tabs per server type,
adaptive server_dialog fields, colored type badges in sidebar,
status checker for all types (SSH/TCP/SQL/Redis/HTTP), 100+ i18n keys.

CLI: ssh.py extended with --sql, --redis, --grafana-*, --prom-*, --ps, --cmd.

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

build.py

@@ -111,13 +111,20 @@ def build():
     if os.path.exists(icon_path):
         cmd_parts.extend(["--icon", icon_path])
 
-    # Hidden imports for customtkinter
+    # Hidden imports for customtkinter and connection libraries
     cmd_parts.extend([
         "--hidden-import", "customtkinter",
         "--hidden-import", "PIL",
         "--hidden-import", "pyotp",
         "--hidden-import", "pyte",
         "--hidden-import", "psutil",
+        "--hidden-import", "pymysql",
+        "--hidden-import", "psycopg2",
+        "--hidden-import", "pymssql",
+        "--hidden-import", "redis",
+        "--hidden-import", "requests",
+        "--hidden-import", "winrm",
+        "--hidden-import", "telnetlib3",
         "--collect-all", "customtkinter",
     ])