feat: PCA SSH Manager v1.1

Portable SSH client with auto-save sessions.
- Session groups (drag-and-drop between groups)
- 100+ quick commands for Linux and Keenetic routers
- Built-in command suggestion agent
- Dark theme (Catppuccin), PCA branding
- Builds to .exe (Windows) or .app (macOS)

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

install.bat

@@ -0,0 +1,17 @@
+@echo off
+echo === KU SSH Manager — Install and Run ===
+
+where python >nul 2>&1
+if errorlevel 1 (
+    echo Python not found!
+    echo Download: https://python.org/downloads/
+    echo Check "Add Python to PATH" during install!
+    pause
+    exit /b 1
+)
+
+echo Installing dependencies...
+pip install paramiko
+
+echo Starting SSH Manager...
+python ssh_manager.py