Revert GET /contacts/{id}/tags envelope to list/data format

The original Intercom PR was reverted and replaced with one that keeps
the existing { type: "list", data: [...] } envelope. Update the example
and schema reference (tags -> tag_list) to match, and use the full tag
schema for tag_list items so applied_at/applied_by are included.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: VedranZoricic

descriptions/0/api.intercom.io.yaml

@@ -4259,8 +4259,8 @@ paths:
               examples:
                 successful:
                   value:
-                    type: tag.list
-                    tags:
+                    type: list
+                    data:
                     - type: tag
                       id: '80'
                       name: Manual tag
@@ -4269,7 +4269,7 @@ paths:
                         type: admin
                         id: '456'
               schema:
-                "$ref": "#/components/schemas/tags"
+                "$ref": "#/components/schemas/tag_list"
         '404':
           description: Contact not found
           content:
@@ -21692,7 +21692,7 @@ components:
           type: array
           description: A list of tags objects associated with the workspace .
           items:
-            "$ref": "#/components/schemas/tag_basic"
+            "$ref": "#/components/schemas/tag"
     tag_multiple_users_request:
       description: You can tag a list of users.
       type: object