feat: native poster creation

[Wand3rerz]

Description

Adds an alternative to all functionality currently provided by the trello system.

• Consolidate static and carousel poster types into one definition.
• Add database tables for posters and carousels (only one default carousel currently).
• Add migration for these new tables and migrating static posters.
• Add feature flag for trello sync.
• Add endpoints for management of posters.
• Add endpoints for setting and getting carousel poster order.
• Add seeding command for special poster types.

Related issues/external references

#193
GEWIS/aurora-client#157
GEWIS/aurora-backoffice#154

Types of changes

• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Breaking changes

Due to major changes to the API endpoints involving the poster systems, this breaks compatibility with clients and backoffice on previous versions.

Migration

GEWIS:

1. Make sure the database is up to date with a synchronized migrations table.
2. Run pnpm migrate to setup the database.
3. Run pnpm seed:gewis-posters to seed the special posters.

Hubble:
No pnpm seed:hubble-posters is included in this pr, to maintain access to e.g. the NS poster a way to create an entry for it has to be enabled. Other than that its the same procedure.

[Gijsdeman]

Good initiative 😎

There are some concerns in the services that should be addressed, but I also left some general suggestions for optimizations and refactors with the goal of brevity or legibility. Those are in principle optional, but should make the code easier to maintain in the long term.

[Copilot]

Pull request overview

Adds a native, database-backed poster system (including carousel ordering) intended to replace/augment the existing Trello-based poster flow, with migrations + seeding and new management endpoints.

Changes:

• Introduces Poster and Carousel DB entities with a migration that converts existing local_poster rows into poster rows.
• Adds poster CRUD/media-upload endpoints and updates static/carousel handlers/controllers to use the new poster service + ordering.
• Refactors Trello sync to reconcile Trello cards into DB posters behind a Poster.Trello feature flag, and adds seeding for default GEWIS posters.

Reviewed changes

Copilot reviewed 24 out of 24 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
src/seed/seedGewis.ts	Adds seedPosters() to seed default GEWIS poster definitions.
src/seed/index.ts	Adds a --gewis-posters seeding mode and runs poster seeding in --gewis.
src/modules/timed-events/cron-manager.ts	Switches timed-event static poster selection to the new PosterService.
src/modules/handlers/screen/poster/trello/trello-poster-storage.ts	Removes old Trello attachment-to-disk storage implementation.
src/modules/handlers/screen/poster/trello/trello-poster-manager.ts	Refactors Trello sync to create/update/delete DB-backed posters.
src/modules/handlers/screen/poster/static/static-poster-controller.ts	New controller for static poster handler state, clock, and show/hide actions.
src/modules/handlers/screen/poster/static-poster-handler.ts	Updates handler state typing to use PosterResponse.
src/modules/handlers/screen/poster/poster.ts	Removes legacy in-memory poster type definitions.
src/modules/handlers/screen/poster/poster-screen-handler-settings.ts	Adds Poster.Trello setting with default.
src/modules/handlers/screen/poster/poster-manager.ts	Removes legacy poster manager abstraction.
src/modules/handlers/screen/poster/local/poster.ts	Adds new Poster TypeORM entity + enums.
src/modules/handlers/screen/poster/local/poster-service.ts	Adds DB + media storage service for posters (create/update/delete/attach).
src/modules/handlers/screen/poster/local/poster-controller.ts	Adds CRUD + media upload + update endpoints for posters.
src/modules/handlers/screen/poster/local/local-poster.ts	Removes legacy LocalPoster entity.
src/modules/handlers/screen/poster/local/local-poster-service.ts	Removes legacy LocalPosterService.
src/modules/handlers/screen/poster/local/local-poster-controller.ts	Removes legacy local poster endpoints.
src/modules/handlers/screen/poster/local/local-carousel.ts	Adds Carousel entity to persist poster ordering.
src/modules/handlers/screen/poster/local/carousel-poster-service.ts	Adds service to get/set carousel poster order.
src/modules/handlers/screen/poster/carousel-poster-handler.ts	Updates handler to use PosterService instead of a poster manager.
src/modules/handlers/screen/poster/carousel-poster-controller.ts	Adds endpoints for carousel order + poster enable toggling, and switches to DB posters.
src/migrations/1781087463209-PosterMigration.ts	Creates new tables and migrates local_poster rows into poster rows.
src/index.ts	Initializes Trello sync at startup when configured + feature enabled.
src/database.ts	Registers new entities and migration.
package.json	Updates migration/seed scripts and adds seed:gewis-posters.

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