Recover Rime faults, persist window modes and fix GPU allocation

docs/configuration/session-protocols.md

@@ -18,6 +18,11 @@ forward unconsumed keys. Both globals remain hidden by default. Treat the flag
 as permission for trusted session clients; virtual key events are rejected
 while the session lock is active. See [the isolated Rime prototype](../development/rime-poc.md).
 
+`FERESE_ENABLE_TEST_POINTER=1` exposes `zwlr_virtual_pointer_manager_v1` for
+isolated UI regression checks. It is off by default and rejects events while
+locked. The test launcher uses a private runtime; this switch is not needed by
+the Rime service or normal keyboard candidate selection.
+
 Shell rounding is controlled in Settings → Panel & Shell → Shell corner radius.
 The shell and compositor use the same squircle profile for fills, borders, shadows
 and blur masks. Small controls cap the radius to fit their size; circles and pills