docs: update README with sidebar, notifications, layout diagram

README.md

@@ -1,17 +1,19 @@
 # x3-ssh
 
-A GTK3-based SSH client with a tabbed terminal interface, server management, and SSH key storage.
+A GTK3-based SSH client with a tabbed terminal interface, server sidebar, notifications, and SSH key storage.
 
-![Icon](icons/x3-ssh.png)
+![Icon](icons/x3-ssh.svg)
 
 ## Features
 
 - **Tabbed terminal** - Multiple SSH sessions in tabs
-- **Server management** - Save, edit, and remove SSH server configurations
+- **Server sidebar** - Saved servers displayed in a sidebar, double-click to connect
+- **Quick connect** - Connect directly via host/user/port fields in the toolbar
 - **SSH key management** - Generate, import, and manage SSH keys
-- **Quick connect** - Connect directly via host/user/port fields
+- **Notifications** - Animated notification bar for status messages (saved, connected, disconnected, errors)
 - **VTE terminal** - Full terminal emulation with 256 color support
 - **Resizable pty** - Terminal auto-resizes the remote pty on window resize
+- **System integration** - `.desktop` file and icon for application menu entry
 
 ## Dependencies
 
@@ -35,10 +37,16 @@ autoreconf -fi
 ./configure
 make
 
-# Install (optional)
+# Install (installs binary, .desktop file, and icon system-wide)
 sudo make install
 ```
 
+## Uninstall
+
+```bash
+sudo make uninstall
+```
+
 ## Configuration
 
 Server configurations are stored in:
@@ -54,12 +62,44 @@ SSH keys are stored in:
 
 ## Usage
 
-1. Start the application: `./x3-ssh`
-2. **Quick Connect**: Enter host, user, and port in the toolbar, click "Connect"
-3. **Saved Servers**: Click "Servers" to add/edit/remove saved server configurations
-4. **SSH Keys**: Click "Keys" to generate or import SSH keys
-5. **Tabs**: Click "+ Tab" for a new empty tab, "Close Tab" to close the current one
-6. Select a saved server from the dropdown to auto-fill connection details
+1. Start the application: `x3-ssh`
+2. **Server Sidebar**: Saved servers appear in the left sidebar. Double-click to connect.
+3. **Quick Connect**: Enter host, user, and port in the toolbar, click "Connect"
+4. **Add Server**: Click the `+` button in the sidebar header, or use the "Add Server" dialog
+5. **SSH Keys**: Click "Keys" in the toolbar to generate or import SSH keys
+6. **Tabs**: Click "+ Tab" for a new empty tab, "Close Tab" to close the current one
+
+## Notifications
+
+The notification bar at the top shows status messages:
+- `Server saved: <name>` - when a server config is saved
+- `Server connected: <user>@<host>:<port>` - on successful connection
+- `Server disconnected` - when disconnecting
+- `Server removed: <name>` - when a server is deleted
+- `Key generated: <name>` / `Key imported: <name>` / `Key deleted: <name>`
+- `Failed to connect to <host>` - on connection failure (red)
+
+Notifications auto-hide after 4 seconds.
+
+## Layout
+
+```
+┌────────────────────────────────────────────────────┐
+│ [Notification bar - auto-hiding]                   │
+├────────────────────────────────────────────────────┤
+│ [Server▼] [host___] [user___] [port] [Connect] ...│
+├───────────┬────────────────────────────────────────┤
+│ Servers   │ [Tab: MyServer] [Tab: Prod] [+]        │
+│ ─────── │                                        │
+│ MyServer  │  user@host:~$                         │
+│ root@h:22 │                                        │
+│           │                                        │
+│ Prod      │                                        │
+│ admin@p:22│                                        │
+├───────────┴────────────────────────────────────────┤
+│ Connected to root@host:22                          │
+└────────────────────────────────────────────────────┘
+```
 
 ## License