Document pantheon2 splash slug for activity 102 (#142)

* Document pantheon2 splash slug for Monument of Triumph activity 102.

Co-authored-by: Cursor <cursoragent@cursor.com>

* Regenerate OpenAPI spec for pantheon2 splash slug example.

Co-authored-by: Cursor <cursoragent@cursor.com>

---------

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: owens1127

open-api/openapi.json

@@ -1409,7 +1409,7 @@
             "contestEnd": null,
             "weekOneEnd": null,
             "milestoneHash": null,
-            "splashSlug": "pantheon"
+            "splashSlug": "pantheon2"
           }
         ]
       },

src/schema/components/ActivityDefinition.ts

@@ -60,7 +60,7 @@ export const zActivityDefinition = registry.register(
                     contestEnd: null,
                     weekOneEnd: null,
                     milestoneHash: null,
-                    splashSlug: "pantheon"
+                    splashSlug: "pantheon2"
                 }
             ]
         })