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/markdown-inline/highlights.scm

@@ -0,0 +1,35 @@
+(emphasis) @emphasis.markup
+
+(strong_emphasis) @emphasis.strong.markup
+
+(code_span) @text.literal.markup
+
+(strikethrough) @strikethrough.markup
+
+[
+  (inline_link)
+  (shortcut_link)
+  (collapsed_reference_link)
+  (full_reference_link)
+  (image)
+  (link_text)
+  (link_label)
+] @link_text.markup
+
+(inline_link
+  [
+    "("
+    ")"
+  ] @link_uri.markup)
+
+(image
+  [
+    "("
+    ")"
+  ] @link_uri.markup)
+
+[
+  (link_destination)
+  (uri_autolink)
+  (email_autolink)
+] @link_uri.markup