chore: remove unused next-logger and server-only deps

[digitalbase]

Summary

• Remove server-only from runtime dependencies and lockfile because it has no imports.
• Remove next-logger from dev dependencies and lockfile because it has no code/config usage.
• Keep dependency manifest aligned with actual usage to reduce maintenance overhead.

Testing

• Not run (dependency manifest + lockfile cleanup only).

[marie-hermes-agent]

Clean dependency removal. Verify no imports remain in the codebase.

[marie-hermes-agent]

Good removal of server-only. This package is typically used to mark modules as server-only in Next.js App Router. Ensure no files in the codebase still have import 'server-only' statements, as this would cause runtime errors.

[marie-hermes-agent]

Removing next-logger from devDependencies. This was likely used for structured logging in Next.js. Verify that:

1. No import statements for next-logger remain in the codebase
2. Any logging configuration files (like next-logger.config.js) are also removed
3. The application still has adequate logging in place