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>

coverage/summary.json

@@ -1,18 +1,18 @@
 {
-  "generatedAt": "2026-05-19T19:19:27.597Z",
-  "commit": "33e3c09",
+  "generatedAt": "2026-05-19T19:30:03.273Z",
+  "commit": "86d9492",
   "repo": {
     "statements": 96.74,
-    "branches": 92.11,
-    "functions": 96.86,
+    "branches": 92.15,
+    "functions": 96.92,
     "lines": 96.74,
     "counts": {
       "lf": 4632,
       "lh": 4481,
-      "brf": 912,
-      "brh": 840,
-      "fnf": 287,
-      "fnh": 278
+      "brf": 917,
+      "brh": 845,
+      "fnf": 292,
+      "fnh": 283
     }
   },
   "byPackage": {
@@ -72,6 +72,20 @@
         "fnh": 33
       }
     },
+    "@repo/core-dsr": {
+      "statements": 100,
+      "branches": 100,
+      "functions": 100,
+      "lines": 100,
+      "counts": {
+        "lf": 0,
+        "lh": 0,
+        "brf": 5,
+        "brh": 5,
+        "fnf": 5,
+        "fnh": 5
+      }
+    },
     "@repo/core-shared": {
       "statements": 98.03,
       "branches": 95.89,