Add Wear OS App

Wear OS 5 (current 2026). Compose for Wear is the only viable UI.

Reality

• Wear OS app = separate Compose module, not RN
• Pair with main app via Wearable Data Layer API
• Build separately in wear/ directory in your repo
• Submit as separate Play Store entry OR bundled

When to build

• Activity tracking (fitness, sleep)
• Notifications + replies on wrist
• Quick logging (habit, tasks, mood)
• Glanceable data (counter, streak, next workout)