chore: extend clippy coverage (#984)

## Description

The PR includes:

- extends clippy linter coverage of the crates
- adds new syntax for describing lints to check
- adds a new job to check that the XCC router is built

## Performance / NEAR gas cost considerations

Some insignificant gas changes.

.github/workflows/scheduled_lints.yml

@@ -79,6 +79,8 @@ jobs:
           echo "$(dirname $(nvm which node))" >> $GITHUB_PATH
       - name: Run checks
         run: cargo make check
+      - name: Run build XCC router
+        run: cargo make build-xcc-router
       - uses: 8398a7/action-slack@v3
         if: failure()
         with:

.github/workflows/tests.yml

@@ -84,6 +84,30 @@ jobs:
       - name: Test ${{ matrix.profile }} bench-modexp
         run: cargo make --profile ${{ matrix.profile }} bench-modexp
 
+  build_xcc_router:
+    name: Build XCC router
+    runs-on: github-hosted-heavy-runner
+    steps:
+      - name: Potential broken submodules fix
+        run: |
+          git checkout -f $(git -c user.name=x -c user.email=x@x commit-tree $(git hash-object -t tree /dev/null) < /dev/null) || :
+      - name: Clone the repository
+        uses: actions/checkout@v4
+      - name: Cargo Cache
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/bin/
+            ~/.cargo/registry/index/
+            ~/.cargo/registry/cache/
+            ~/.cargo/git/db/
+            etc/xcc-router/target/
+          key: cargo-build-xcc-router
+      - name: Install dependencies
+        run: cargo +stable make -V || cargo +stable install cargo-make
+      - name: Build
+        run: cargo make build-xcc-router
+
 env:
   CARGO_TERM_COLOR: always
   CARGO_INCREMENTAL: 0