feat(core-dsr): scaffold package + GDPR DSR interfaces and types

- Add pnpm turbo gen core-package dsr generator template and register
  dsr in CORE_PACKAGE_GENERATORS / choices list
- Run generator to produce packages/core-dsr/ shell
- Define IDataExport (Art. 15/20), IDataDelete (Art. 17),
  IDataRectify (Art. 16), IProcessingRestriction (Art. 18) interfaces
- Add UserDataBundle and DeletionCertificate types in dsr-types.ts
- Ship core-dsr/contexts/user-data.jsonld schema.org JSON-LD @context
- Wire @repo/core-dsr into transpilePackages (web-next)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/core-dsr/src/index.ts

@@ -0,0 +1,16 @@
+export type {
+  DsrFormat,
+  DeletionMode,
+  DeletionReason,
+  DeletionAction,
+  SubjectReference,
+  CollectionDataBucket,
+  UserDataBundle,
+  DeletionAffected,
+  DeletionCertificate,
+} from "./dsr-types";
+
+export type { IDataExport } from "./data-export.interface";
+export type { IDataDelete } from "./data-delete.interface";
+export type { IDataRectify } from "./data-rectify.interface";
+export type { IProcessingRestriction } from "./processing-restriction.interface";