5e32f77884
Migrated `@backstage/plugin-techdocs-backend` and `@backstage/plugin-search-backend-module-techdocs` to use the stable `catalogServiceRef` from `@backstage/plugin-catalog-node` instead of the deprecated one from `@backstage/plugin-catalog-node/alpha`. This also updates `CachedEntityLoader`, `DefaultTechDocsCollatorFactory`, and the TechDocs router to use `CatalogService` (credentials-based) instead of `CatalogApi` (token-based). Signed-off-by: Fredrik Adelöw <freben@spotify.com> Made-with: Cursor