v0.1.5

• Added project-level activity indicators so working agents are visible before opening a thread.
• Improved navigation with a responsive Back button during loading and smooth, layout-aware scrolling for long messages.
• Improved phone-to-watch reliability with request-scoped updates, UTF-8-safe message sizing, stale-response cleanup, and clearer delivery errors.
• Preserved project model selections and thread runtime and interaction modes when creating threads or sending prompts from the watch.
• Improved setup, controls, troubleshooting, and reproducible release documentation.