Geoparser

This release introduces the following updates:

- **FastAPI migration**: Replaced Flask with FastAPI and updated all routes and templates.
- **Database integration**: Added SQLModel with full CRUD for sessions, documents, settings, and toponyms.
- **Testing & CI**: Expanded test coverage, added integration and E2E tests, and improved workflows.
- **Legacy support**: Enabled loading and migration of legacy session files.
- **UX & cleanup**: Improved frontend behavior, optimized file handling, and cleaned up code and dependencies.

What's Changed
* Add code formatting and import sorting with GitHub actions by nicolasspring in https://github.com/dguzh/geoparser/pull/1
* poetry dependency manager and small refactoring by nicolasspring in https://github.com/dguzh/geoparser/pull/2
* Add tests for gazetteers by nicolasspring in https://github.com/dguzh/geoparser/pull/3
* Refactor gazetteers and increase test coverage by nicolasspring in https://github.com/dguzh/geoparser/pull/4
* Test coverage for missing classes by nicolasspring in https://github.com/dguzh/geoparser/pull/5
* Fix tests for gazetteer changes by nicolasspring in https://github.com/dguzh/geoparser/pull/6
* Store thread-local data per instance for Gazetteer by nicolasspring in https://github.com/dguzh/geoparser/pull/8
* Speed up GeoparserAnnotator initialization by nicolasspring in https://github.com/dguzh/geoparser/pull/9
* Make test pass with locally installed en_core_web_trf by nicolasspring in https://github.com/dguzh/geoparser/pull/10
* Set up multiple gazetteers with a single command by nicolasspring in https://github.com/dguzh/geoparser/pull/11
* Add tests, refactor library and cli by nicolasspring in https://github.com/dguzh/geoparser/pull/13
* Add annotator tool, extend test coverage and restructure directory by dguzh in https://github.com/dguzh/geoparser/pull/15
* Rework GitHub workflows by nicolasspring in https://github.com/dguzh/geoparser/pull/16
* Documentation by dguzh in https://github.com/dguzh/geoparser/pull/17
* Corpus Format Change by dguzh in https://github.com/dguzh/geoparser/pull/18
* Fix for Candidate Querying Issue With Double Toponym Constructs by dguzh in https://github.com/dguzh/geoparser/pull/19
* Update Dependencies by dguzh in https://github.com/dguzh/geoparser/pull/20
* Candidate filter by dguzh in https://github.com/dguzh/geoparser/pull/22
* Shellcheck stg_release script by nicolasspring in https://github.com/dguzh/geoparser/pull/23
* Increase test coverage by nicolasspring in https://github.com/dguzh/geoparser/pull/21
* Generate Third Party Licenses by dguzh in https://github.com/dguzh/geoparser/pull/24
* add paths filter to licenses workflow by dguzh in https://github.com/dguzh/geoparser/pull/25
* License Documentation by dguzh in https://github.com/dguzh/geoparser/pull/26
* Feature/geodoc locations by dguzh in https://github.com/dguzh/geoparser/pull/27
* Extend Documentation by dguzh in https://github.com/dguzh/geoparser/pull/28
* Merge development branch into staging by dguzh in https://github.com/dguzh/geoparser/pull/29
* Merge v0.2.0 from development to staging by dguzh in https://github.com/dguzh/geoparser/pull/30
* Merge staging to main by dguzh in https://github.com/dguzh/geoparser/pull/31

**Full Changelog**: https://github.com/dguzh/geoparser/commits/0.2.0