feat: add ably event publishing for mcp worker installs

[jonathannorris]

Add Ably Event Publishing for MCP Worker Installs

This PR adds real-time event publishing to the dashboard when users successfully install and authenticate with the hosted MCP Worker.

Changes

• Event Publishing: Publishes mcp-install events to Ably on successful OAuth completion
• Channel: Dynamic channel naming using ${orgId}-mcp-install
• Payload: Raw JWT claims from DevCycle/Auth0 authentication
• Implementation: Uses Ably.Rest.Promise following existing EventForwardingObject pattern
• Performance: Fire-and-forget publishing with waitUntil() to avoid blocking OAuth flow

Files Modified

• mcp-worker/src/telemetry.ts - New centralized telemetry module
• mcp-worker/src/auth.ts - Simplified OAuth callback with event publishing
• mcp-worker/package.json - Added Ably dependency
• mcp-worker/wrangler.toml - Environment variable comments
• mcp-worker/worker-configuration.d.ts - Added ABLY_API_KEY typing
• mcp-worker/README.md - Updated documentation

Configuration Required

• Set ABLY_API_KEY secret in Cloudflare Workers dashboard

Note: Only applies to hosted @devcycle/mcp-worker, not local @mcp/ version.

[Copilot]

Pull Request Overview

This PR adds real-time event publishing to notify the dashboard when users successfully complete OAuth authentication with the hosted MCP Worker. The implementation uses Ably for publishing events to organization-specific channels.

• Added Ably event publishing for MCP worker OAuth completion
• Created centralized telemetry module with error handling
• Updated configuration and documentation for new dependency

Reviewed Changes

Copilot reviewed 5 out of 7 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
mcp-worker/src/ably.ts	New module for publishing MCP install events to Ably channels
mcp-worker/src/auth.ts	Added event publishing to OAuth callback flow
mcp-worker/package.json	Added Ably dependency
mcp-worker/wrangler.toml	Added ABLY_API_KEY configuration comment and enabled AI binding
mcp-worker/README.md	Documented new event publishing functionality

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