Add isolated native Rime service and MiSans candidate UI

docs/configuration/session-protocols.md

@@ -12,6 +12,12 @@ environment for screenshots to work.
 Text input is available by default; Ctrl+Alt+Escape releases an active shortcut
 inhibitor. Use `feresectl --help` for runtime control commands.
 
+On the local Rime prototype branch, `FERESE_ENABLE_INPUT_METHOD=1` also enables
+`zwp_virtual_keyboard_manager_v1`, which native input-method-v2 clients use to
+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).
+
 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