### Added
- Added the `orjson` serializer for faster JSON serialization
- Used in `structlog`'s `JSONRenderer` for production logging
- Used in `fastapi`'s `Response` for faster response serialization
- Improved documentation in multiple files
- `__main__.py`
- `logging.py`
- `models.py`
- `utilities.py`
- `migrate.py`
- `responses.py`
- A `get_db` utility function to retrieve a reference to the database (with type hinting)
- Minor `DATABASE_URL` check in `models.py` to prevent cryptic connection issues
## Changed
- Migration script now uses `structlog` instead of `print`
- Migration script output is tuned to structlog as well.
- Migration names must be at least 9 characters long
- Unspecified IPv6 addresses are returned without hiding in `utilities.hide_ip`
- Applied `get_db` utility function in all applicable areas.
### Fixed
- Raised level for `apscheduler.scheduler` logger to `WARNING` to prevent excessive logging
- IPv4 interface bind in production, preventing Railway's Private Networking from functioning
- Reloader mode enabled in production
### Changed
- Mildly reformatted `README.md`
- A development mode check for the `app.state.ip_pool`'s initialization (caused application failure in production only)
### Fixed
- Improper formatting of blockquote Alerts in `README.md`
### Added
- This `CHANGELOG.md` file.
- Structured logging with `structlog`
- Readable `ConsoleRenderer` for local development
- `JSONRenderer` for production logging
- Request-Id Middleware with `asgi-correlation-id`
- Expanded README.md with more comprehensive instructions for installation & usage
- Repository-wide improved documentation details, comments
- CodeSpell exceptions in VSCode workspace settings
### Changed
- Switched from `hypercorn` to `uvicorn` for ASGI runtime
- Switched to direct module 'serve' command in `backend/run.sh` & `backend/railway.json`
- Relocated `.tool-versions` to project root
- Massively overhauled run.sh scripts, mostly for backend service
- Improved environment variable access in logging setup
- Root logger now adheres to the same format as the rest of the application
- Hide IP list when error occurs on client
- `run.sh` passes through all arguments, e.g. bpython REPL via `./run.sh repl`
- Use UTC timezone for timestamps, localize human readable strings, fixing 4 hour offset issue
- `is_development` available globally from `utilities` module
### Removed
- Deprecated `startup` and `shutdown` events
- Development-only randomized IP address pool for testing
