v1.5.0: network interface binding, SSH fixes, terminal, release script

- Add network interface selection per server (VPN/multi-NIC support)
- Fix "Install Everything" button hanging on error
- Add interactive SSH terminal with PTY (pyte + xterm-256color)
- Add release.py for automated versioning and changelog generation
- Add CLAUDE.md with project instructions
- Add screenshots and release binaries for v1.1–v1.4

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

gui/widgets/status_badge.py

@@ -8,6 +8,7 @@ COLORS = {
     "online": "#22c55e",   # green
     "offline": "#ef4444",  # red
     "unknown": "#6b7280",  # gray
+    "disabled": "#9ca3af", # light gray
 }
 
 
@@ -23,4 +24,5 @@ class StatusBadge(ctk.CTkLabel):
 
     def _update_color(self):
         color = COLORS.get(self._status, COLORS["unknown"])
-        self.configure(text="\u25cf", text_color=color, font=("", 14))
+        symbol = "\u2014" if self._status == "disabled" else "\u25cf"
+        self.configure(text=symbol, text_color=color, font=("", 14))