v1.16.0

Changelog

• 3cd31b0 docs(changelog): add v1.15.0 and unreleased entries
• 13a50ce docs(changelog): release v1.16.0
• 4c98646 feat(channels): enhance Telegram and WhatsApp with message tracking and deduplication
• 4138836 feat(channels): enhance channel configuration and token management
• cba9d54 feat(copilot): major core alignment — LCM, compaction, failover, subagent, gateway
• 225ccda feat(plugins): inject plugin agent summaries into main agent system prompt
• d0f783b feat(plugins): plugin installer CLI + WebUI, config injection, and documentation
• 428c120 feat(plugins): unified YAML-first plugin system with agent runtime and WebUI
• b19bead feat(telegram): add token connect/remove flow in management UI
• 72fca55 feat(tls): self-signed HTTPS support + macOS deploy fix
• 83470f2 feat(ui): enhance configuration management with UnsavedChangesBar and refactor ApiConfig
• 5198e38 feat(ui): introduce ModelCombobox component for model selection
• e7e555e feat(webui): design system migration — tokens, components, layout, and UX improvements
• 4234510 fix(channels): WhatsApp access control + Telegram management UI
• f1e133b fix(channels): multi-instance lifecycle, QR safety, concurrency races, and team system removal
• f0616c4 fix(ci): add GoReleaser-specific Dockerfile for pre-built binary
• dbd7dcf fix(ci): correct Dockerfile path in GoReleaser config
• 91933d9 fix(copilot): collect recently-completed subagent results in yield path
• 65fd388 fix(ui): remove stale design system reference from theme.css comment
• 88c1968 refactor(channels): remove Discord and Slack support from serve command
• 182a6a2 refactor(channels): update channel metadata type for icon property
• 0404fcc refactor(ui): streamline model selection in ApiConfig and StepProvider