JAI CLUB V4 GAME SYNTAX FIX

Fixed malformed JavaScript operators in K3, 5D and Moto Racing lazy-loaded bundles:
- optional chaining: ? .  -> ?.
- nullish coalescing: ? ? -> ??

A fresh main bundle and fresh game chunk filenames are used to bypass browser cache.
Same-domain request proxy remains:
- /api-live-v4/
- /draw-live-v4/

Deploy the complete ZIP to the jaiclub0.site document root and overwrite all files.
Hidden .htaccess files under api-live-v4 and draw-live-v4 must be uploaded.
