Inject GLFW shell and move Win32 key map

docs/modernization/tasks.md

@@ -78,6 +78,16 @@ Completed, blocked, and superseded task history moved to
   the queue is now ordered by code movement instead.
 
 Current slice:
+- `src/platform_legacy/legacy_platform_services.*` now uses an injected
+  `LegacyGlfwPlatformShell` for the remaining Linux/WebGL
+  acquire/present/request-close path.
+- `linux/src/main.cpp` and `webgl/src/main.cpp` now bind those GLFW operations
+  directly from entrypoint-owned window state.
+- `src/platform_legacy/legacy_platform_state.*` no longer carries the old GLFW
+  acquire/present/request-close helper trio.
+- `src/platform_windows/windows_platform_services.cpp` now owns the Win32
+  virtual-key map initialization path, so `windows_window_shell.cpp` no longer
+  carries that retained input setup.
 - `src/platform_windows/windows_window_shell.*` no longer keeps the dead
   retained raw key-state array.
 - `linux/src/main.cpp` now owns the Linux FPS-title callback lifecycle