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>

crates/grammars/src/go/indents.scm

@@ -0,0 +1,17 @@
+[
+  (assignment_statement)
+  (call_expression)
+  (selector_expression)
+] @indent
+
+(_
+  "["
+  "]" @end) @indent
+
+(_
+  "{"
+  "}" @end) @indent
+
+(_
+  "("
+  ")" @end) @indent