feat: trigger execution queuing, fan-out, and MCP rate limiting#2772

Draft

vnv-varun wants to merge 13 commits intomainfrom

feat/trigger-execution-queuing

Commits on Mar 19, 2026

[US-001] Add concurrency control columns and validation for scheduled triggers
vnv-varun
committed
[US-002] Add audience config and recipient user ID columns with migrations
vnv-varun
committed
[US-003] Add rate limits column to tools schema
vnv-varun
committed
[US-004] Update scheduled trigger CRUD routes and tests for new fields
vnv-varun
committed
[US-005] Implement fan-out invocation creation in scheduled trigger runner
vnv-varun
committed
[US-006] Add concurrency control for fan-out invocation processing
vnv-varun
committed
[US-007] Wire fan-out invocation execution with recipient user context
vnv-varun
committed
[US-008] Implement in-memory MCP token bucket rate limiter
vnv-varun
committed
[US-009] Integrate rate limiter into MCP client tool calls
vnv-varun
committed
[US-010] Add rate limits tests for tools API routes
vnv-varun
committed
[US-011] Add concurrency and audience controls to trigger form UI
vnv-varun
committed
[US-012] Add rate limits configuration to tool settings UI
vnv-varun
committed
fix: address post-implementation review findings
vnv-varun
committed