Integrate native Rime and stabilize input, output, and rendering

- Add optional modifier-only Super binding whose tap is cancelled by
  other input, focus changes, grabs, locks, and session teardown.
- Ship the native ferese-rime user service, Rime defaults, installer
  inventory, package dependencies, session environment, and docs.
- Vendor Smithay 8a27023 with the SHM texture-cache format fix and add
  GPU regressions for format changes and resize snapshots.
- Release reused CRTC owners before staging output modes, then restore
  changed outputs before former owners when a transaction fails.
- Wait for resize-capture GPU completion, expand filtered surface
  damage, and preserve IME popup origin under fractional scaling.
- Mark weekends like holidays in both calendar layouts.

compositor/src/config/bindings/index.rs

@@ -27,7 +27,10 @@ impl From<Vec<Binding>> for BindingSet {
 
             if matches!(
                 identity.match_mode,
-                BindingMatch::Keysym | BindingMatch::Physical | BindingMatch::Pointer
+                BindingMatch::Keysym
+                    | BindingMatch::Physical
+                    | BindingMatch::Pointer
+                    | BindingMatch::SuperTap
             ) {
                 index.entry(identity).or_insert(position);
             }
@@ -46,6 +49,16 @@ impl std::ops::Deref for BindingSet {
 }
 
 impl BindingSet {
+    pub(crate) fn super_tap(&self) -> Option<&Binding> {
+        self.index
+            .get(&BindingIdentity {
+                modifiers: BindingModifiers::default(),
+                match_mode: BindingMatch::SuperTap,
+                key: 0,
+            })
+            .map(|index| &self.ordered[*index])
+    }
+
     pub(crate) fn binding_for_pointer(
         &self,
         trigger: super::PointerTrigger,