feat: add Makefile for build, run, and installation commands

Makefile

@@ -0,0 +1,44 @@
+.PHONY: build build-egui dev check clippy fmt fmt-check test run run-egui install install-egui clean
+
+RELEASE_BIN := target/release/k-launcher
+EGUI_BIN    := target/release/k-launcher-egui
+INSTALL_DIR := $(HOME)/.local/bin
+
+build:
+	cargo build --release
+
+build-egui:
+	cargo build --release -p k-launcher --features egui --bin k-launcher-egui
+
+dev:
+	cargo build
+
+check:
+	cargo check --workspace
+
+clippy:
+	cargo clippy --workspace -- -D warnings
+
+fmt:
+	cargo fmt --all
+
+fmt-check:
+	cargo fmt --all -- --check
+
+test:
+	cargo test --workspace
+
+run:
+	cargo run --release
+
+run-egui:
+	cargo run --release -p k-launcher --features egui --bin k-launcher-egui
+
+install: build
+	install -Dm755 $(RELEASE_BIN) $(INSTALL_DIR)/k-launcher
+
+install-egui: build-egui
+	install -Dm755 $(EGUI_BIN) $(INSTALL_DIR)/k-launcher-egui
+
+clean:
+	cargo clean