v0.15.67

What's fixed

• /inbox now falls back to legacy MediaQueryList.addListener when a mobile browser does not support addEventListener on matchMedia results.
• The media-query hook also no-ops safely when window.matchMedia is unavailable, so a browser capability gap cannot crash the inbox before the mobile layout renders.

Verification

• Added regression coverage for missing matchMedia, legacy iOS listener APIs, and modern media-query listeners.