Generalize UI: general status by default, diagnostics behind Debug details

Rework the spike-era debug readouts into general-purpose status, with the
verbose diagnostics gated behind the menu bar's "Debug details" switch:

- Controllers (was "Phase 0 spike"): always shows slot/source + live
  buttons; the raw stick/trigger numbers are debug-only.
- Injection hook status: general view is attached + focus spoof + a single
  "Game reading controller: N polls/s" summary; the per-slot poll table,
  focus-API counts, and input-path detection are debug-only.
- Audio: general view adds a "Buffered: N ms" health/latency proxy
  (AudioMirror now tracks buffered audio in both render paths) and keeps the
  render-stream count; the per-stream table is debug-only.

Default overlay is now clean general status; flip Debug details for the full
diagnostics. Completes the "generalize the UI" roadmap task. All tests pass.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

host/src/audio_panel.hpp

@@ -23,8 +23,9 @@ public:
 		target_ = target;
 	}
 
-	// `status` is the hook's back-channel, for the render-stream debug view.
-	void draw_ui(const HookStatusView& status);
+	// `status` is the hook's back-channel, for the render-stream view. With
+	// `debug_details` on, the per-stream table is shown.
+	void draw_ui(const HookStatusView& status, bool debug_details);
 
 private:
 	HWND target_ = nullptr;