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>

turbo/generators/config.ts

@@ -797,11 +797,26 @@ import noRealtimeHandlerReexport from "./rules/no-realtime-handler-reexport.js";
         },
         printConsentNextSteps,
       ],
+      dsr: () => [
+        () => {
+          assertOptionalPackageNotPresent("core-dsr");
+          return "Guard passed — packages/core-dsr does not exist yet.";
+        },
+        ...emitTemplateTree("core-package/dsr", "packages/core-dsr"),
+        () => {
+          addToTranspilePackages(
+            "apps/web-next/next.config.mjs",
+            "@repo/core-dsr",
+          );
+          return "Added @repo/core-dsr to transpilePackages.";
+        },
+        printDsrNextSteps,
+      ],
     };
 
   plop.setGenerator("core-package", {
     description:
-      "Scaffold an optional core package (realtime, events, trpc, ui, audit, analytics, consent)",
+      "Scaffold an optional core package (realtime, events, trpc, ui, audit, analytics, consent, dsr)",
     prompts: [
       {
         type: "list",
@@ -811,6 +826,7 @@ import noRealtimeHandlerReexport from "./rules/no-realtime-handler-reexport.js";
           "analytics",
           "audit",
           "consent",
+          "dsr",
           "events",
           "realtime",
           "trpc",
@@ -1564,6 +1580,25 @@ function printConsentNextSteps(): string {
   ].join("\n");
 }
 
+function printDsrNextSteps(): string {
+  return [
+    "─────────────────────────────────────────────────────────────",
+    "@repo/core-dsr scaffolded into packages/core-dsr/.",
+    "",
+    "Next steps:",
+    "",
+    "  1. pnpm install   # link the new workspace package",
+    "",
+    "  2. Implement DSR interfaces and types in packages/core-dsr/src/",
+    "     (see story 06-core-dsr)",
+    "",
+    "  3. Add @repo/core-dsr to feature package.json files that need DSR",
+    "",
+    "  4. pnpm typecheck && pnpm lint && pnpm test",
+    "─────────────────────────────────────────────────────────────",
+  ].join("\n");
+}
+
 function coreUiComponentActions(a: {
   tier: "atom" | "molecule" | "organism";
   name: string;