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Replace current wrapper claims with native architecture/security/build evidence, preserve historical documents, track all thirty pages and explicit release gates, correct brand attribution and provide the twelve-section delivery report without claiming completion.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

CONTRIBUTING.md

@@ -11,7 +11,9 @@ Add regression tests with security fixes, and demonstrate that the test fails
 without the fix. Do not commit build outputs, credentials, private signing keys,
 local servers, generated fixture certificates, or production household data.
 
-Keep platform integrations native and dependencies minimal. The server owns
+Keep all application screens native (Compose/SwiftUI), not just platform
+integrations. No WebView fallback for unfinished modules; use the parity tracker
+and never count archived browser tests as native evidence. Keep dependencies minimal. The server owns
 business logic, authentication, CSRF, and authorization. Never solve compatibility
 by disabling TLS, accepting every origin, or copying a browser's session cookies.
 Upstream prohibits frontend frameworks, bundlers, and transpilers in its own