Update admin theme/layout and refresh README details.

Align the project baseline with the latest admin interface styling and layout structure while documenting setup and usage updates in README.

docker-compose.test.yml

@@ -0,0 +1,33 @@
+services:
+  postgres:
+    image: postgres:16
+    environment:
+      POSTGRES_USER: test
+      POSTGRES_PASSWORD: test
+      POSTGRES_DB: compton_test
+    ports:
+      - "5433:5432"
+
+  redis:
+    image: redis:7-alpine
+    ports:
+      - "6380:6379"
+
+  api:
+    build: ./apps/api
+    env_file:
+      - ./apps/api/.env.test
+    environment:
+      DATABASE_URL: postgresql+psycopg://test:test@postgres:5432/compton_test
+    depends_on:
+      - postgres
+      - redis
+    ports:
+      - "8001:8000"
+
+  web:
+    build: ./apps/web
+    depends_on:
+      - api
+    ports:
+      - "5175:5173"