logiguard fork: GPUI xdg-activation keyboard-focus serial fix

Single-commit orphan branch: full zed-industries/zed @ 8c74db0 source tree
with a 3-file patch applied (no upstream history).

Patch (crates/gpui_linux/src/linux/wayland/):
  - 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)

Mutter honors window activation only when the token carries the keyboard-
focus serial from wl_keyboard.enter; GPUI used a stale mouse-press serial.
See docs/tray-window-focus-wayland.md in logiguard.

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

crates/editor/Cargo.toml

@@ -0,0 +1,149 @@
+[package]
+name = "editor"
+version = "0.1.0"
+edition.workspace = true
+publish.workspace = true
+license = "GPL-3.0-or-later"
+
+[lints]
+workspace = true
+
+[lib]
+path = "src/editor.rs"
+doctest = false
+
+[features]
+test-support = [
+    "text/test-support",
+    "language/test-support",
+    "gpui/test-support",
+    "multi_buffer/test-support",
+    "project/test-support",
+    "theme/test-support",
+    "util/test-support",
+    "workspace/test-support",
+    "tree-sitter-c",
+    "tree-sitter-rust",
+    "tree-sitter-typescript",
+    "tree-sitter-html",
+    "proptest",
+    "unindent",
+]
+
+[dependencies]
+aho-corasick.workspace = true
+anyhow.workspace = true
+assets.workspace = true
+base64.workspace = true
+breadcrumbs.workspace = true
+client.workspace = true
+clock.workspace = true
+collections.workspace = true
+convert_case.workspace = true
+dap.workspace = true
+db.workspace = true
+buffer_diff.workspace = true
+emojis.workspace = true
+feature_flags.workspace = true
+file_icons.workspace = true
+futures.workspace = true
+futures-lite.workspace = true
+fuzzy.workspace = true
+fs.workspace = true
+git.workspace = true
+gpui.workspace = true
+indoc.workspace = true
+edit_prediction_types.workspace = true
+itertools.workspace = true
+language.workspace = true
+linkify.workspace = true
+log.workspace = true
+lsp.workspace = true
+markdown.workspace = true
+menu.workspace = true
+multi_buffer.workspace = true
+ordered-float.workspace = true
+parking_lot.workspace = true
+pretty_assertions.workspace = true
+project.workspace = true
+proptest = { workspace = true, optional = true }
+proptest-derive = { workspace = true, optional = true }
+rand.workspace = true
+regex.workspace = true
+rpc.workspace = true
+rope.workspace = true
+schemars.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+settings.workspace = true
+smallvec.workspace = true
+snippet.workspace = true
+sum_tree.workspace = true
+task.workspace = true
+telemetry.workspace = true
+text.workspace = true
+time.workspace = true
+theme.workspace = true
+theme_settings.workspace = true
+tree-sitter-c = { workspace = true, optional = true }
+tree-sitter-html = { workspace = true, optional = true }
+tree-sitter-rust = { workspace = true, optional = true }
+tree-sitter-typescript = { workspace = true, optional = true }
+tree-sitter-python = { workspace = true, optional = true }
+ztracing.workspace = true
+tracing.workspace = true
+unicode-segmentation.workspace = true
+unicode-script.workspace = true
+unindent = { workspace = true, optional = true }
+ui.workspace = true
+ui_input.workspace = true
+url.workspace = true
+util.workspace = true
+uuid.workspace = true
+vim_mode_setting.workspace = true
+workspace.workspace = true
+zed_actions.workspace = true
+zlog.workspace = true
+
+[dev-dependencies]
+criterion.workspace = true
+ctor.workspace = true
+gpui = { workspace = true, features = ["test-support"] }
+language = { workspace = true, features = ["test-support"] }
+languages = {workspace = true, features = ["test-support"] }
+lsp = { workspace = true, features = ["test-support"] }
+markdown = { workspace = true, features = ["test-support"] }
+multi_buffer = { workspace = true, features = ["test-support"] }
+project = { workspace = true, features = ["test-support"] }
+proptest.workspace = true
+proptest-derive.workspace = true
+release_channel.workspace = true
+rand.workspace = true
+semver.workspace = true
+settings = { workspace = true, features = ["test-support"] }
+
+text = { workspace = true, features = ["test-support"] }
+theme = { workspace = true, features = ["test-support"] }
+tree-sitter-c.workspace = true
+tree-sitter-go.workspace = true
+tree-sitter-html.workspace = true
+tree-sitter-rust.workspace = true
+tree-sitter-typescript.workspace = true
+tree-sitter-yaml.workspace = true
+tree-sitter-bash.workspace = true
+tree-sitter-md.workspace = true
+unicode-width.workspace = true
+unindent.workspace = true
+util = { workspace = true, features = ["test-support"] }
+workspace = { workspace = true, features = ["test-support"] }
+
+zlog.workspace = true
+
+
+[[bench]]
+name = "editor_render"
+harness = false
+
+[[bench]]
+name = "display_map"
+harness = false