Initial commit: niri workspaces waybar module in Rust

Fast workspace visualization for waybar with:
- Color-coded windows by app (Chrome, Discord, Firefox, etc.)
- Terminal detection (Claude, Codex, nvim) via /proc
- Dimmed colors for unfocused workspaces
- Active window indicator (▌) for would-be-focused windows
- Parallel niri IPC calls for ~12ms execution time

1 files changed, 13 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
new file mode 100644
index 0000000..9a25c76
--- /dev/null
+++ b/Cargo.toml
@@ -0,0 +1,13 @@
+[package]
+name = "niri-workspaces"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+
+[profile.release]
+lto = true
+strip = true
+opt-level = 3