Add Rust CI workflow for build and test processes

.gitea/workflows/build.yaml

@@ -0,0 +1,43 @@
+name: Rust CI
+
+on:
+  push:
+    branches: ["**"]
+  pull_request:
+
+jobs:
+  build-test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Install Rust (stable)
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache cargo
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+            target
+          key: cargo-${{ runner.os }}-${{ hashFiles('**/Cargo.lock') }}
+
+      - name: Install Rust components
+        run: |
+          rustup component add rustfmt
+          rustup component add clippy
+
+      - name: Format (check)
+        run: cargo fmt --all -- --check
+
+      - name: Clippy
+        run: cargo clippy --all-targets --all-features -- -D warnings
+
+      - name: Build (release)
+        run: cargo build --release
+
+      - name: Test
+        run: cargo test --all --all-features