v0.16.2

Features

• Usage view (#531, @srothgan): Add usage recommendations, keyboard scrolling, and clearer formatting to /usage.

Fixes

• Context usage (#508, @srothgan): Refresh context usage every five seconds during active turns.

Documentation

• Manual and demo (#508, #509, @srothgan): Reorganize user and maintainer guides, expand feature documentation, and refresh the demo.

CI and Dependencies

• Agent SDK (#531, @srothgan): Upgrade Agent SDK from 0.3.302 to 0.3.311.
• Security updates (#510, #527, #528, @srothgan): Update hono, rustls-webpki, zod, body-parser, ip-address, and fast-uri.
• npm workspace (#528, @srothgan): Install root and bridge dependencies with one root npm ci and a shared lockfile.
• Regression coverage (#512, @srothgan): Expand permission delivery and cancellation coverage and stabilize the hidden-footer subagent test.