feat(service): add a Quick Settings tile for the radio connection

[jamesarich]

On Android the foreground service owns the radio link, so a Quick Settings tile can show the live connection and connect or disconnect from the shade. Apple's new Control Center controls (Meshtastic-Apple#2668) can only open the app.

🌟 New Features

• Meshtastic Quick Settings tile (active tile): on with our node's short name when connected, on with "Connecting" while connecting, off when disconnected or sleeping, "No device selected" otherwise.
• A tap disconnects the same way the Connect tab does, reconnects through the reselect path while the service runs, and otherwise starts the service. With no radio selected, or if Android refuses the start, it opens the Connect tab.

🛠️ Refactoring & Architecture

• New ServiceStartTrigger.QuickSettingsTile. SystemUI temp-allowlists the app for a tile click ("tile onclick", 15 s), so ForegroundStartPolicy always attempts it; MeshService.startService now returns whether the start went through, so a refusal falls back to opening the app.
• The tile requests a refresh in onTileAdded; an active tile is bound only on request, so one added while the state was steady stayed blank.
• The tile service joins BundledSqliteGuardTest's expected entry points. MeshService.kt picks up a spotless reformat of scheduleDeviceAddressResolution.

📝 Documentation

• Connections page: a Quick Settings Tile section.

Testing Performed

• QuickSettingsTileStateTest (new): the state mapping for every connection state, for no radio selected, and for a stopped service. ForegroundStartPolicyTest: a tile tap is attempted from the background on every restricted level.
• Full baseline (spotlessApply spotlessCheck detekt detektTypeResolved assembleDebug test allTests kmpSmokeCompile -PwarningsAsErrors=true) green locally.
• Emulator, API 36, against a simulated TCP radio:
  • Connected: tile on with the short name. Tap disconnects; the tile goes off with "No device selected".
  • App force-stopped, tile tapped from the launcher: Background started FGS: Allowed ... tile onclick, the service started and reconnected, the app stayed in the background.
• Not seen: API 31 to 35, where the tap allowlist is unverified and the fallback to opening the app is what covers a refusal.

Connected	No device selected

Constitution Check

• I: Android framework integration in core:service/androidMain only.
• II: spotless, detekt and detektTypeResolved pass.
• III: no new Compose UI; subtitles reuse shared Compose strings.
• IV: no names or addresses logged.
• V: monochrome system icon; SystemUI draws the tile. Android-only, so there's no cross-platform spec.
• VI: Connections page updated, last_updated bumped.
• VII: baseline green before push.

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