feat: add tenant and user management with migrations, handlers, and tests

- Implemented tenant and user management features including:
  - Tenant creation and management with associated migrations.
  - User creation and management with associated migrations.
  - Tenant membership management with associated migrations.
  - Platform user roles management with associated migrations.
  - Quota management with associated migrations.
  - Article and template management with associated migrations.
- Added HTTP handlers for templates and workspaces.
- Created tests for protected and public routes.
- Introduced a script to check tenant scope in SQL queries.
- Documented task plan for backend completion and frontend foundation.

server/docker-compose.yaml

@@ -0,0 +1,21 @@
+services:
+  postgres:
+    image: postgres:16
+    container_name: geo-postgres
+    ports:
+      - "5432:5432"
+    environment:
+      POSTGRES_DB: geo
+      POSTGRES_USER: geo
+      POSTGRES_PASSWORD: geo_dev
+    volumes:
+      - pgdata:/var/lib/postgresql/data
+
+  redis:
+    image: redis:7-alpine
+    container_name: geo-redis
+    ports:
+      - "6379:6379"
+
+volumes:
+  pgdata: