docs: sync integration guide through v36

[Osilvfe]

Bring repository documentation up to the current v36 implementation/integration state.

• replace the stale v31 status with a concise v36 feature/integration summary
• document parent-space emphasized masks and upstream-style obscene-word preprocessing
• document AMLLPlayerView and the fact that a traditional Android View/Capacitor consumer does not need the Compose compiler plugin
• update the build baseline to SDK 36, AGP 8.13.0, Kotlin/Compose plugin 2.2.20, Compose BOM 2026.06.00, Gradle 8.14.3 and JVM 21
• document Maven Local and credential-gated GitHub Packages publication
• refresh the Chinese guide for Compose hosts, View hosts, masking, playback/seek, annotations, background vocals, lifecycle and the planned YAQMC native-overlay architecture
• remove the stale claim that LyricWord.obscene is only reserved metadata

Documentation only; no renderer or build behavior changes.