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/dev_container/Cargo.toml

@@ -0,0 +1,47 @@
+[package]
+name = "dev_container"
+version = "0.1.0"
+publish.workspace = true
+edition.workspace = true
+
+[dependencies]
+anyhow.workspace = true
+async-tar.workspace = true
+async-trait.workspace = true
+serde.workspace = true
+serde_json.workspace = true
+serde_json_lenient.workspace = true
+yaml-rust2.workspace = true
+shlex.workspace = true
+http_client.workspace = true
+http.workspace = true
+gpui.workspace = true
+fs.workspace = true
+futures.workspace = true
+log.workspace = true
+menu.workspace = true
+paths.workspace = true
+regex.workspace = true
+picker.workspace = true
+project.workspace = true
+settings.workspace = true
+ui.workspace = true
+util.workspace = true
+walkdir.workspace = true
+worktree.workspace = true
+workspace.workspace = true
+
+[dev-dependencies]
+fs = { workspace = true, features = ["test-support"] }
+gpui = { workspace = true, features = ["test-support"] }
+project = { workspace = true, features = ["test-support"] }
+serde_json.workspace = true
+settings = { workspace = true, features = ["test-support"] }
+
+workspace = { workspace = true, features = ["test-support"] }
+worktree = { workspace = true, features = ["test-support"] }
+util = { workspace = true, features = ["test-support"] }
+env_logger.workspace = true
+
+[lints]
+workspace = true