Share the platform-neutral Rust mobile contract (#91)

docs/android/architecture.md

@@ -25,10 +25,10 @@ reads repository files, parses entries/URIs or error labels, generates passwords
 or codes, or independently decides credential matches or authentication policy.
 
 Use typed semantic icons/actions, stable IDs, generation/revision tokens,
-view-ready records and typed errors. #91 removes SF Symbol and Watch assumptions
-from shared phone contracts. Keep Swift compatibility through mechanical
-adapters. #92 generates Kotlin and Swift from one shared UniFFI surface rather
-than copying crates/apple conversions. A thin Android bridge may adapt platform
+view-ready records and typed errors. #91's `crates/mobile-bridge` removes SF Symbol
+and Watch assumptions from shared phone contracts and generates Swift and Kotlin
+from one source. `crates/apple` opts into Watch; `crates/android` packages the
+phone surface through #92's native build gates. A thin Android bridge may adapt platform
 callbacks; it must contain no password-store decisions or handwritten unsafe
 Rust. Generated/dependency FFI stays isolated from project-authored safe Rust.