feat: Implement Phase 2 cross-cutting services with email and notification enhancements

- Refactor email verification and password reset utilities to use new email service.
- Introduce email delivery queue and notification delivery model for better tracking.
- Enhance file validation and storage services for improved security and ownership management.
- Add cron job for cleaning inactive notifications with retention policy.
- Update document worker to handle document generation and storage more efficiently.
- Implement logging improvements in activity and log workers.
- Create comprehensive documentation for new API endpoints and services.
- Add unit tests for file validation and notification policies to ensure robustness.

app/config/s3.config.js

@@ -7,5 +7,7 @@ module.exports = process.env.ENABLE_S3 === "true"
         accessKeyId: process.env.AWS_ACCESS_KEY_ID,
         secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY,
       },
+      ...(process.env.S3_ENDPOINT ? { endpoint: process.env.S3_ENDPOINT } : {}),
+      forcePathStyle: process.env.S3_FORCE_PATH_STYLE === "true",
     })
   : { send: async () => { throw new Error("S3 functionality is not enabled"); } };