feat(plugin): event-driven notification service (Slack, Discord, Telegram) #829
Description
Purpose
Send notifications automatically on events — no need for Claude to call a tool. Wave completion, PR creation, errors, and budget alerts trigger notifications instantly.
Changes
packages/codingbuddy-plugin/— Notification module- Webhook integrations: Slack, Discord, Telegram
- Config: codingbuddy.config.json notification section
Supersedes
- feat: completion notifications (Slack, Discord, Telegram) #820 (completion notifications) — Plugin event-driven is superior to MCP tool-call-based
Events
- Wave complete → summary notification
- PR created → PR URL + summary
- Error detected → alert with context
- Cost budget exceeded → warning
Acceptance Criteria
- Slack webhook support
- Discord webhook support
- Telegram bot support
- Per-event notification config
- Message includes: task, agent, cost, duration, PR URL