fix(core): pretty link for TASK_RUN_UNCAUGHT_EXCEPTION

Adds a prettyInternalErrors entry pointing the dashboard at a troubleshooting
doc anchor for uncaught exceptions. Link-only — no `message` override, so the
customer's original error (e.g. "read ECONNRESET") is preserved as the main
text. The link gives them somewhere to read about attaching .on("error")
listeners and the unhandledRejection pathway.

The docs anchor (#uncaught-exceptions) doesn't exist yet — needs a docs PR
to add the troubleshooting section.

Author: matt-aitken

packages/core/src/v3/errors.ts

@@ -724,6 +724,18 @@ const prettyInternalErrors: Partial<
       href: links.docs.troubleshooting.stalledExecution,
     },
   },
+  // Link only — we deliberately do NOT set `message`, so the original
+  // error message (e.g. "read ECONNRESET") is preserved in the dashboard.
+  // Common cause: an EventEmitter (node-redis, pg, etc.) emitted "error"
+  // with no listener attached, which Node escalates to uncaughtException.
+  // The docs page explains how to attach .on("error") listeners and how
+  // unhandled rejections route through the same path.
+  TASK_RUN_UNCAUGHT_EXCEPTION: {
+    link: {
+      name: "Read our troubleshooting guide",
+      href: links.docs.troubleshooting.uncaughtException,
+    },
+  },
 };
 
 const getPrettyTaskRunError = (code: TaskRunInternalError["code"]): TaskRunInternalError => {

packages/core/src/v3/links.ts

@@ -15,6 +15,7 @@ export const links = {
     troubleshooting: {
       concurrentWaits: "https://trigger.dev/docs/troubleshooting#parallel-waits-are-not-supported",
       stalledExecution: "https://trigger.dev/docs/troubleshooting#task-run-stalled-executing",
+      uncaughtException: "https://trigger.dev/docs/troubleshooting#uncaught-exceptions",
     },
     concurrency: {
       recursiveDeadlock: