Rolling: v1.6.0-paxx12-develop-67a0b46

Notice

This is a rolling develop-branch build, overwritten automatically on
every push — not a tagged, curated release. It has not been through the
manual review a stable/testing release gets, and can change or regress
at any time. Use it to preview upcoming changes, not on a printer you
depend on.

New Features and Key Changes

• #705: Split FULLVERSION into BASE_VERSION and FULLVERSION (@paxx12)
• #559: Add Cloudflare Pages Functions for firmware upgrade check (@paxx12)