fix: standardize file headers — REPO rename, SPDX case, missing fields

- Update REPO: from MokoStandards-API to moko-platform in 125 files
- Fix wrong org path (mokoconsulting-tech → MokoConsulting) in 10 files
- Fix SPDX-LICENSE-IDENTIFIER case in 2 template files
- Add missing REPO: field to 3 files

Authored-by: Moko Consulting

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

templates/scripts/validate/validate_structure.php

@@ -10,7 +10,7 @@
  * FILE INFORMATION
  * DEFGROUP: MokoStandards.Templates.Scripts.Validate
  * INGROUP: MokoStandards.Templates
- * REPO: https://git.mokoconsulting.tech/mokoconsulting-tech/MokoStandards
+ * REPO: https://git.mokoconsulting.tech/MokoConsulting/moko-platform
  * PATH: /templates/scripts/validate/validate_structure.php
  * BRIEF: Validate a repository structure against MokoStandards requirements
  * NOTE: Deployed to bin/validate_structure.php in governed generic/default repos.