Hook registry: list installed hooks + call counts in Injection panel

Add a process-wide hook registry (hook/src/hook_registry) that every hook
module registers its hooks with and bumps a counter from each detour. The
XInput, focus-spoof, and audio render-hooks now register their individual
hooks (XInputGetState/Ex/Caps/SetState; GetForegroundWindow/GetActiveWindow/
GetFocus/WndProc guard; IMMDevice::Activate, IAudioClient::Initialize/
GetService, IAudioRenderClient::GetBuffer/ReleaseBuffer) and count calls.

The worker publishes the table to the host each tick over a new HookStatus
field (protocol v4 -> v5: HookEntry[] + count). The Injection panel shows it
as a collapsible table grouped by subsystem with an installed flag and call
count per hook; coop_audio_probe prints the same table headless.

Verified against Phantom Brave: 13 hooks listed with live counts (focus APIs
polled heavily, GetBuffer/ReleaseBuffer ticking with the audio render loop).
All four tests pass.

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

hook/src/dllmain.cpp

@@ -17,6 +17,7 @@
 #include "coop/shared_memory.hpp"
 #include "debug_log.hpp"
 #include "focus_spoof.hpp"
+#include "hook_registry.hpp"
 #include "ipc_client.hpp"
 #include "xinput_hook.hpp"
 
@@ -97,6 +98,7 @@ DWORD WINAPI worker_thread(LPVOID)
 			coop::hook::republish_audio_format();
 		}
 		coop::hook::update_input_diagnostics(g_ipc); // refreshes each tick; registrations can change
+		coop::hook::hook_publish(g_ipc);             // installed-hooks list + call counts
 		g_ipc.heartbeat();
 		Sleep(250);
 	}
@@ -130,6 +132,7 @@ BOOL APIENTRY DllMain(HMODULE module, DWORD reason, LPVOID reserved)
 			coop::hook::remove_focus_spoof();
 			coop::hook::remove_xinput_hooks();
 			coop::hook::remove_audio_hooks();
+			coop::hook::hook_registry_reset();
 		}
 		break;
 	default: