OPA v0.3 — Tailscale SSH, AMOLED default

What's new

• Tailscale SSH — connect over WireGuard tunnel. Set Network to Tailscale in connection profile, paste an auth key, and SSH through your tailnet.
• AMOLED black permanent default — true black backgrounds on all screens, no toggle needed.
• Vendored tailscale package — \packages/tailscale/\ as local path dependency for the embedded Tailscale node.

Full changelog

• AMOLED black is now the unconditional default (removed settings toggle)
• Fixed TailscaleService.init never being called — SSH-over-tailnet now works
• Vendored packages/tailscale/ for reproducible builds
• \withOpacity()\ → \withValues(alpha:)\ migration
• AGP 8.9.1 → 8.11.1, built-in Kotlin
• Design polish: glassmorphism cards, formatting consistency, deprecation fixes