feat: Next 16 + Payload 3 scaffold with Kaniko CI and Swarm deploy (#1)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

docker-compose.yml

@@ -0,0 +1,29 @@
+# =============================================================================
+# jasonwoltje.com — local dev Postgres
+# =============================================================================
+# Brings up just Postgres for local `pnpm dev`. The Next app runs on the host
+# via `pnpm dev` (not in-container) for fast iteration.
+#
+#   docker compose up -d        # start Postgres
+#   pnpm dev                    # run Next + Payload on host
+# =============================================================================
+
+services:
+  postgres:
+    image: postgres:17-alpine
+    environment:
+      POSTGRES_DB: ${PAYLOAD_POSTGRES_DB:-payload}
+      POSTGRES_USER: ${PAYLOAD_POSTGRES_USER:-payload}
+      POSTGRES_PASSWORD: ${PAYLOAD_POSTGRES_PASSWORD:-payload}
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres-data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U $${POSTGRES_USER}"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+volumes:
+  postgres-data: