init: scaffold complet Sakuin — backend NestJS + frontend SvelteKit + CI/CD + deploy VPS

Backend: 5 modules (auth, user, work, list, health), AniList GraphQL proxy,
SuperOAuth PKCE introspection, XP system, migrations TypeORM.
Frontend: SvelteKit adapter-node, PWA manifest, dark theme, pages home/search/list/profile/callback.
Infra: CI/CD Gitea vps-runner, Apache vhost SSL, pm2 sakuin-backend + sakuin-frontend, port 4002.
License: BSL 1.1 (Apache 2.0 en 2028).

LICENSE

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+Business Source License 1.1
+
+License text copyright (c) 2017 MariaDB Corporation Ab, All Rights Reserved.
+"Business Source License" is a trademark of MariaDB Corporation Ab.
+
+Parameters
+
+Licensor:             Tetardtek
+Licensed Work:        Sakuin
+                      The Licensed Work is (c) 2026 Tetardtek.
+Additional Use Grant: You may make production use of the Licensed Work,
+                      provided such use does not include offering the
+                      Licensed Work to third parties as a hosted or
+                      managed service, where the service provides users
+                      with access to any substantial set of the features
+                      or functionality of the Licensed Work.
+Change Date:          2028-03-24
+Change License:       Apache License, Version 2.0
+
+For information about alternative licensing arrangements for the Licensed Work,
+please contact: contact@tetardtek.com
+
+Notice
+
+Business Source License 1.1
+
+Terms
+
+The Licensor hereby grants you the right to copy, modify, create derivative
+works, redistribute, and make non-production use of the Licensed Work. The
+Licensor may make an Additional Use Grant, above, permitting limited production
+use.
+
+Effective on the Change Date, or the fourth anniversary of the first publicly
+available distribution of a specific version of the Licensed Work under this
+License, whichever comes first, the Licensor hereby grants you rights under the
+terms of the Change License, and the rights granted in the paragraph above
+terminate.
+
+If your use of the Licensed Work does not comply with the requirements currently
+in effect as described in this License, you must purchase a commercial license
+from the Licensor, its affiliated entities, or authorized resellers, or you
+must refrain from using the Licensed Work.
+
+All copies of the original and modified Licensed Work, and derivative works of
+the Licensed Work, are subject to this License. This License applies separately
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+version of the Licensed Work released by Licensor.
+
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+of the Licensed Work. If you receive the Licensed Work in original or modified
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+apply to your use of that work.
+
+Any use of the Licensed Work in violation of this License will automatically
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+This License does not grant you any right in any trademark or logo of Licensor
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