docs: record verified native preview and unfinished PWA parity

Replace current wrapper claims with native architecture/security/build evidence, preserve historical documents, track all thirty pages and explicit release gates, correct brand attribution and provide the twelve-section delivery report without claiming completion. Native signing remains paused and Apple application/device validation outstanding.

THIRD_PARTY_NOTICES.md

@@ -2,7 +2,10 @@
 
 Yuvomi Mobile is an independent community contribution, not an official Yuvomi
 product. Yuvomi's name identifies the server with which it interoperates.
-Visual color values follow upstream DESIGN.md. No upstream logo is redistributed.
+Native design-token mappings follow upstream DESIGN.md/styles. The native
+three-circle brand mark is redrawn from upstream's published brand geometry and
+colors (`public/utils/brand-mark.js` and `docs/logo.svg`); its MIT attribution is
+preserved below. No affiliation or trademark ownership is implied.
 
 Upstream Yuvomi: https://github.com/ulsklyc/yuvomi