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/proto/extension.toml

@@ -0,0 +1,24 @@
+id = "proto"
+name = "Proto"
+description = "Protocol Buffers support."
+version = "0.3.2"
+schema_version = 1
+authors = ["Zed Industries <support@zed.dev>"]
+repository = "https://github.com/zed-industries/zed"
+
+[grammars.proto]
+repository = "https://github.com/coder3101/tree-sitter-proto"
+commit = "a6caac94b5aa36b322b5b70040d5b67132f109d0"
+
+
+[language_servers.buf]
+name = "Buf"
+languages = ["Proto"]
+
+[language_servers.protobuf-language-server]
+name = "Protobuf Language Server"
+languages = ["Proto"]
+
+[language_servers.protols]
+name = "Protols"
+languages = ["Proto"]