CI: Add 'cargo fmt --check' and setup rust toolchain to lint-ci

.github/workflows/lint-code.yml

@@ -30,5 +30,8 @@ jobs:
         shell: bash
         run: npm install -g prettier@3.8.1
 
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+
       - name: Lint
         run: ${{ github.workspace }}/Meta/lint-ci.sh

Meta/lint-ci.sh

@@ -52,4 +52,11 @@ else
     ((FAILURES+=1))
 fi
 
+if cargo fmt --check && git diff --exit-code -- ':*.rs'; then
+    echo -e "[${GREEN}OK${NC}]: cargo fmt --check"
+else
+    echo -e "[${BOLD_RED}FAIL${NC}]: cargo fmt --check"
+    ((FAILURES+=1))
+fi
+
 exit "${FAILURES}"