Sub2API custom 2.18.0.1

Upgrade the TopAPI custom release from v2.17.7.2 to ranxi v2.18.0 while retaining the image-workbench routing fixes and existing recharge UI.

Includes scoped administrator API keys, profit/upstream operations, quality-template improvements, Grok diagnostics, Gemini compatibility, pricing and pagination fixes. Two migrations add scoped_admin_api_keys and the default-off group image_count_billing field.

Conflict resolution combines all upstream admin permission middleware and routes with the custom daily check-in routes. Both locale indexes keep desktopAuth and imageWorkbench while adding new upstream modules. Recharge gifts (50→50, 100→120, 500→650, 1000→1400), package styles, enterprise contact and configured QR dialog are unchanged. Image catalog still follows the managed key group and strict chatgpt2api matching remains enforced.

Validation:

• handler/service full unit suites passed, including recharge and image-workbench regressions.
• server, middleware, routes and adminaccess suites passed after route integration.
• go build and relevant go vet passed.
• frontend lint/typecheck and 1,690 tests passed; 136 additional new-feature tests passed.
• frontend production build and git diff --check passed.
• Independent integration review found no remaining blockers.
• Pre-release live purchase cards and business dialog verified against v2.17.7.2; QR image loads at 315×325. Protected payment files have no changes.

Release uses custom tag v2.18.0.1 and fresh database backup before deployment. Operational records stay outside the source fork.