Fix CI workflow - remove sudo dependency

Run nats-server directly from extracted location instead of
installing to /usr/local/bin, avoiding the need for sudo which
isn't available in the Gitea runner environment.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.gitea/workflows/ci.yaml

@@ -25,19 +25,15 @@ jobs:
       - uses: actions/setup-go@v5
         with:
           go-version: '1.23'
-      - name: Install NATS Server
+      - name: Install and Start NATS Server
         run: |
-          # Download and install nats-server
+          # Download nats-server
           curl -L https://github.com/nats-io/nats-server/releases/download/v2.10.24/nats-server-v2.10.24-linux-amd64.tar.gz -o nats-server.tar.gz
           tar -xzf nats-server.tar.gz
-          sudo mv nats-server-v2.10.24-linux-amd64/nats-server /usr/local/bin/
-          nats-server --version
-      - name: Start NATS with JetStream
-        run: |
-          nats-server -js -p 4222 &
+          # Run directly from extracted location (no sudo needed)
+          ./nats-server-v2.10.24-linux-amd64/nats-server -js -p 4222 &
           # Wait for NATS to be ready
           sleep 3
-          # Verify NATS is running
-          curl -s http://localhost:8222/healthz || echo "Health check not available, but NATS may still be running"
+          ./nats-server-v2.10.24-linux-amd64/nats-server --version
       - name: Run Integration Tests
         run: go test -tags=integration -v ./...