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>

gui/sidebar.py

@@ -6,6 +6,34 @@ import customtkinter as ctk
 from core.i18n import t
 from gui.widgets.status_badge import StatusBadge
 
+TYPE_COLORS = {
+    "ssh": "#22c55e",
+    "telnet": "#a855f7",
+    "rdp": "#3b82f6",
+    "vnc": "#6366f1",
+    "winrm": "#0ea5e9",
+    "mariadb": "#f59e0b",
+    "mssql": "#ef4444",
+    "postgresql": "#3b82f6",
+    "redis": "#dc2626",
+    "grafana": "#f97316",
+    "prometheus": "#e11d48",
+}
+
+TYPE_LABELS = {
+    "ssh": "SSH",
+    "telnet": "TEL",
+    "rdp": "RDP",
+    "vnc": "VNC",
+    "winrm": "PS",
+    "mariadb": "MDB",
+    "mssql": "SQL",
+    "postgresql": "PG",
+    "redis": "RDS",
+    "grafana": "GRF",
+    "prometheus": "PRM",
+}
+
 
 class Sidebar(ctk.CTkFrame):
     def __init__(self, master, store, on_select=None, session_pool=None):
@@ -101,6 +129,17 @@ class Sidebar(ctk.CTkFrame):
             badge.pack(side="left", padx=(10, 5), pady=10)
             self._badges[alias] = badge
 
+            # Type badge (colored short label)
+            type_color = TYPE_COLORS.get(stype, "#6b7280")
+            type_label_text = TYPE_LABELS.get(stype, stype.upper()[:3])
+            type_badge = ctk.CTkLabel(
+                frame, text=type_label_text,
+                font=ctk.CTkFont(size=9, weight="bold"),
+                text_color=type_color,
+                width=30
+            )
+            type_badge.pack(side="left", padx=(0, 2), pady=10)
+
             # Active session indicator (right side)
             session_ind = ctk.CTkLabel(
                 frame, text="", width=12, height=12,
@@ -117,12 +156,11 @@ class Sidebar(ctk.CTkFrame):
 
             name_label = ctk.CTkLabel(info, text=alias, font=ctk.CTkFont(size=13, weight="bold"), anchor="w")
             name_label.pack(fill="x")
-            detail = f"{ip}  [{stype}]"
-            detail_label = ctk.CTkLabel(info, text=detail, font=ctk.CTkFont(size=10), text_color="#9ca3af", anchor="w")
+            detail_label = ctk.CTkLabel(info, text=ip, font=ctk.CTkFont(size=10), text_color="#9ca3af", anchor="w")
             detail_label.pack(fill="x")
 
             # Click handlers
-            for widget in [frame, info, name_label, detail_label, badge, session_ind]:
+            for widget in [frame, info, name_label, detail_label, badge, type_badge, session_ind]:
                 widget.bind("<Button-1>", lambda e, a=alias: self._select(a))
 
             self._server_frames[alias] = frame