Build rust json-rpc client in CI

.github/workflows/ci.yml

@@ -69,3 +69,28 @@ jobs:
         with:
           name: signal-cli-native
           path: build/native/nativeCompile/signal-cli
+
+  build-client:
+    strategy:
+      matrix:
+        os:
+          - ubuntu
+          - macos
+          - windows
+    runs-on: ${{ matrix.os }}-latest
+    defaults:
+      run:
+        working-directory: ./client
+    steps:
+      - uses: actions/checkout@v4
+      - name: Install rust
+        run: rustup default stable
+      - name: Build client
+        run: cargo build --release --verbose
+      - name: Archive production artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: signal-cli-client-${{ matrix.os }}
+          path: |
+            client/target/release/signal-cli-client
+            client/target/release/signal-cli-client.exe