feat: add just task runner, remove .cargo/config.toml

.devcontainer/devcontainer.json

@@ -20,8 +20,8 @@
 		}
 	},
 	// Install system libraries needed by build scripts (e.g. bindgen/libclang for iceoryx2),
-	// then install cargo-deny for local deny checks, and activate the git hooks.
-	"postCreateCommand": "sudo apt-get update && sudo apt-get install -y libclang-dev && sudo rm -rf /var/lib/apt/lists/* && cargo install --locked cargo-deny && git config core.hooksPath .githooks",
+	// install just (task runner) and cargo-deny, then activate the git hooks.
+	"postCreateCommand": "sudo apt-get update && sudo apt-get install -y libclang-dev just && sudo rm -rf /var/lib/apt/lists/* && cargo install --locked cargo-deny && just setup",
 	// Configure tool-specific properties.
 	"customizations": {
 		"vscode": {

Justfile

@@ -0,0 +1,33 @@
+# Just task runner for OATH.
+# Full reference: https://just.systems/man/en/
+#
+# Install: https://just.systems/man/en/packages.html
+# Usage:   just <recipe>  (e.g. `just ci`)
+
+# List all available recipes (default when running `just` with no arguments).
+[private]
+default:
+    @just --list
+
+# Point Git at the project's hook directory. Run once after cloning outside the devcontainer.
+setup:
+    git config core.hooksPath .githooks
+
+# Type-check every crate and target without codegen.
+check:
+    cargo check --workspace --all-targets
+
+# Run Clippy across every crate and target; warnings are errors.
+lint:
+    cargo clippy --workspace --all-targets -- -D warnings
+
+# Run the full test suite.
+test:
+    cargo test --workspace
+
+# Check licenses, bans, advisories, and sources.
+deny:
+    cargo deny --all-features check
+
+# Run the full local CI suite: lint, test, and deny.
+ci: lint test deny