Consolidate logging and expose it on debug builds

[davertay-j]

Renames the sub-system for all the various non-js logs as "Topaz" and adds them to the debug build log persistence. So we will have the existing JsMessage logs for all the Js related stuff, and Topaz logs for all the app native stuff. I am leaving WebView logs alone (and not persisted) as they are usually not very useful and crazy noisy.

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Note

Low Risk
Logging identifiers and debug plist settings only; no runtime behavior beyond aligning EventBus debug logging with existing app config.

Overview
Unifies native OSLog output under the Topaz subsystem (with per-module categories such as AppModel, BluetoothEngine, EventBus) instead of separate subsystem names per package.

Adds OSLogPreferences for Topaz in Info.plist so debug builds persist Topaz logs at Debug level with private data enabled, matching the existing JsMessage configuration. WebView logging is intentionally unchanged.

Wires EventBus(enableDebugLogging: appConfig.enableDebugLogging) when constructing the Bluetooth stack so event-bus debug logs follow the same app debug flag as the engine and virtual keyboard.

^{Reviewed by Cursor Bugbot for commit b8a33c1. Configure here.}