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>

core/server_store.py

@@ -26,15 +26,20 @@ BACKUP_DIR = os.path.join(SHARED_DIR, "backups")
 LOCAL_CONFIG_DIR = os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), "config")
 EXAMPLE_FILE = os.path.join(LOCAL_CONFIG_DIR, "servers.example.json")
 
-SERVER_TYPES = ["ssh", "telnet", "rdp", "mariadb", "mssql", "postgresql"]
+SERVER_TYPES = ["ssh", "telnet", "rdp", "vnc", "winrm", "mariadb", "mssql", "postgresql", "redis", "grafana", "prometheus"]
 
 DEFAULT_PORTS = {
     "ssh": 22,
     "telnet": 23,
     "rdp": 3389,
+    "vnc": 5900,
+    "winrm": 5985,
     "mariadb": 3306,
     "mssql": 1433,
     "postgresql": 5432,
+    "redis": 6379,
+    "grafana": 3000,
+    "prometheus": 9090,
 }
 
 # Auto-backup interval: 10 minutes