Option for Slack Alerts to Not send thread update to channel

### Problem Statement Replying to the thread can be sufficient for some use cases; for those that prefer to disable this, it is considered noisy. ### Solution Brainstorm This seems no different from disabling threads on alerts entirely, so a toggle in integration settings for alerts to still create threads but not send the reply to the channel. Perhaps in Org Settings > Integrations > Slack > Features with the other options; see below: <img src="https://uploads.linear.app/3ed206af-f87a-40aa-82a0-150bf83e43e6/34438a9b-309b-492b-a986-0e02e6f645ba/52592aed-4294-46c3-bf77-de7928902071?signature=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJwYXRoIjoiLzNlZDIwNmFmLWY4N2EtNDBhYS04MmEwLTE1MGJmODNlNDNlNi8zNDQzOGE5Yi0zMDliLTQ5MmItYTk4Ni0wZTAyZTZmNjQ1YmEvNTI1OTJhZWQtNDI5NC00NmMzLWJmNzctZGU3OTI4OTAyMDcxIiwiaWF0IjoxNzY5MjEwNjk3LCJleHAiOjE4MDA3ODEyNTd9.AFRFVtXNGV53cN_tzxPv1jv1d0sKIfLyV7MyLPBNMYw " alt="Image" width="915" /> ### Product Area Settings - Integrations We want to define a set of [lightweight metrics](<https://docs.sentry.io/product/explore/metrics/>) that SDKs can automatically collect for e.g. framework, language or platform, focusing only on signals that **do NOT overlap with Tracing**. Ideally these metrics should give a quick sense of app or runtime health, … while deeper investigation will still rely on traces or profiles.<br><br>Examples**:** * Node.js runtime metrics (e.g., event loop delay, heap usage) * Prisma-related metrics in Next.js * Mobile CPU / memory usage to help surface potential ANRs or app hangs --- **Candidate Metrics (add more below)** * … *(please also add ideas, questions or examples in comments)*