Add CI workflow

.forgejo/workflows/check.yaml

@@ -0,0 +1,23 @@
+on: [push]
+jobs:
+  print-content:
+    runs-on: docker
+    container:
+      image: rust:slim
+    steps:
+      - name: install action dependencies
+        run: apt install --no-install-recommends --update -y nodejs
+      - name: setup toolchain
+        run: rustup component add rustfmt clippy
+      - name: checkout code
+        uses: actions/checkout@v6
+      - name: install dependencies
+        run: cargo install --path .
+      - name: cargo check
+        run: cargo check --all-targets
+      - name: format
+        run: cargo fmt -- --check
+      - name: lint
+        run: cargo clippy -- -Dwarnings
+      - name: test
+        run: cargo test