feat: implement full CI/CD pipeline with staged deployments

- PR workflow: build, deploy to CI site, wait for health, run acceptance tests
- Release workflow: deploy to dev using mounted compose path with health check
- Add deploy-prod workflow (workflow_dispatch) for human-gated prod deployment
- Add just recipes: deploy-prod, status (view current image tags across envs)
- Runners now have /apps mount for access to all environment compose files

justfile

@@ -240,6 +240,50 @@ workflow-status:
     @echo "Test Workflow: Runs unit tests on all branch pushes"
     @echo "Release Workflow: Runs on main branch pushes (version bump + Docker build)"
 
+# --- Production Deployment ---
+
+# Deploy a specific version to production (human gate)
+# Usage: just deploy-prod v0.1.21
+deploy-prod version:
+    @echo "Deploying {{version}} to production..."
+    @echo "This requires the image to already be pushed to the registry."
+    @echo ""
+    @read -p "Have you verified this version works in dev? (y/N) " confirm; \
+    if [ "$$confirm" != "y" ]; then \
+      echo "Cancelled. Please verify in dev first."; \
+      exit 1; \
+    fi
+    cd /apps/youthful_simon && \
+    sed -i "s|image: docker.notsosm.art/euchre-camp:[a-zA-Z0-9.-]*|image: docker.notsosm.art/euchre-camp:{{version}}|" docker-compose.yml && \
+    sed -i "s|image: euchre-camp/euchre-camp:[a-zA-Z0-9.-]*|image: docker.notsosm.art/euchre-camp:{{version}}|" docker-compose.yml && \
+    docker compose pull app && \
+    docker compose up -d app && \
+    echo "Waiting for production site to be healthy..." && \
+    for i in {1..30}; do \
+      if curl -sf https://euchre.notsosm.art/api/health > /dev/null 2>&1; then \
+        echo "✅ Production successfully deployed with version {{version}}"; \
+        exit 0; \
+      fi; \
+      sleep 0.5; \
+    done && \
+    echo "❌ Production deployment failed - health check timed out"; \
+    docker compose logs app; \
+    exit 1
+
+# Show current deployment status across all environments
+status:
+    @echo "=== EuchreCamp Deployment Status ==="
+    @echo ""
+    @echo "CI Site (euchre-camp-ci):"
+    @grep "image:" /apps/euchre_camp_ci/docker-compose.yml | head -1
+    @echo ""
+    @echo "Dev Site (euchre-camp-dev):"
+    @grep "image:" /apps/intelligent_silasak/docker-compose.yml | head -1
+    @echo ""
+    @echo "Prod Site (euchre-camp):"
+    @grep "image:" /apps/youthful_simon/docker-compose.yml | head -1
+    @echo ""
+
 # --- SDLC Database Operations ---
 
 # Sync production data to development database (manual operation)