logiguard fork v2: patched GPUI on verified 8c74db0 tree

Rebuilt from the exact zed-industries/zed @ 8c74db00c4053d6c0a9037863d7bd048658da4ca
tree (previous orphan was based on a stale/wrong fetch). Same 3-file patch:
  - serial.rs: add SerialKind::KeyboardEnter
  - client.rs: store wl_keyboard.enter serial; add latest_serial_of()
  - window.rs: activate() uses keyboard-enter serial (Mutter focus gate)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

extensions/test-extension/languages/gleam/outline.scm

@@ -0,0 +1,31 @@
+(external_type
+  (visibility_modifier)? @context
+  "type" @context
+  (type_name) @name) @item
+
+(type_definition
+  (visibility_modifier)? @context
+  (opacity_modifier)? @context
+  "type" @context
+  (type_name) @name) @item
+
+(data_constructor
+  (constructor_name) @name) @item
+
+(data_constructor_argument
+  (label) @name) @item
+
+(type_alias
+  (visibility_modifier)? @context
+  "type" @context
+  (type_name) @name) @item
+
+(function
+  (visibility_modifier)? @context
+  "fn" @context
+  name: (_) @name) @item
+
+(constant
+  (visibility_modifier)? @context
+  "const" @context
+  name: (_) @name) @item