feat: Update GitHub Actions permissions and optimize Java build command for parallel execution

Author: rostilos

.github/workflows/deploy.yml

@@ -40,6 +40,10 @@ concurrency:
 env:
   DEPLOY_PATH: /opt/codecrow
 
+permissions:
+  contents: read
+  checks: write
+
 jobs:
   build:
     name: Build & Test → Docker Images

deployment/ci/ci-build.sh

@@ -50,7 +50,7 @@ fi
 
 # ── 2. Build & Test Java Artifacts ─────────────────────────────────────────
 echo "--- 2. Building & testing Java artifacts (mvn clean verify) ---"
-(cd "$JAVA_DIR" && mvn clean verify)
+(cd "$JAVA_DIR" && mvn clean verify -T 1C)
 echo "  ✓ Java build & tests complete"
 
 # ── 3. Copy MCP JARs ──────────────────────────────────────────────────────