feat(api): dockerize backend with compose, migrations-on-start, and run docs

docker-compose.yml

@@ -0,0 +1,17 @@
+services:
+  api:
+    build:
+      context: .
+      dockerfile: apps/api/Dockerfile
+    ports:
+      - '3000:3000'
+    environment:
+      DATABASE_URL: file:/data/app.db
+      BETTER_AUTH_SECRET: ${BETTER_AUTH_SECRET:-change-me-to-a-long-random-string}
+      BETTER_AUTH_URL: http://localhost:3000
+      PORT: '3000'
+    volumes:
+      - solelog_db:/data
+
+volumes:
+  solelog_db: