Merge remote-tracking branch 'origin/main' into docs/v4-docs-updates

# Conflicts:
#	docs/docs.json
#	docs/frontend/overview.mdx
#	docs/frontend/react-hooks/overview.mdx
#	docs/guides/example-projects/human-in-the-loop-workflow.mdx
#	docs/management/authentication.mdx
#	docs/realtime/backend/streams.mdx
#	docs/realtime/overview.mdx
#	docs/realtime/react-hooks/triggering.mdx
#	docs/realtime/react-hooks/use-wait-token.mdx
#	docs/realtime/subscribe-to-batch.mdx
#	docs/realtime/subscribe-to-run.mdx
#	docs/realtime/subscribe-to-runs-with-tag.mdx
#	docs/triggering.mdx
#	docs/upgrade-to-v4.mdx

Author: matt-aitken

.changeset/afraid-waves-divide.md

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+---
+"trigger.dev": patch
+---
+
+Make the default of legacyDevProcessCwdBehaviour true instead of false (prevents breaking prismaExtension)

.changeset/beige-horses-juggle.md

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+---
+"trigger.dev": patch
+---
+
+Added experimental_devProcessCwdInBuildDir config option to opt-in to new process.cwd behavior when executing tasks in the dev CLI. Currently process.cwd maps to the "root" of your trigger.dev project (the directory that contains your trigger.config.ts file). Setting experimental_devProcessCwdInBuildDir to true changes process.cwd to instead be the temporary build directory inside of the .trigger directory.

.changeset/big-garlics-own.md

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+---
+"@trigger.dev/sdk": patch
+---
+
+fix: importing from runEngine/index.js breaks non-node runtimes

.changeset/clean-beans-run.md

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+---
+"trigger.dev": patch
+---
+
+fix: prevent circular reference errors on task indexing when using schemaTask

.changeset/cyan-news-design.md

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+---
+"trigger.dev": patch
+---
+
+Allow any runs to finish after SIGTERM but disable warm starts

.changeset/early-points-jam.md

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+---
+"trigger.dev": patch
+---
+
+Gracefully shutdown task run processes using SIGTERM followed by SIGKILL after a 1s timeout. This also prevents cancelled or completed runs from leaving orphaned Ttask run processes behind

.changeset/empty-dolls-judge.md

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+---
+"trigger.dev": patch
+---
+
+Switch to profile after successful login

.changeset/famous-clocks-thank.md

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+---
+"@trigger.dev/sdk": patch
+---
+
+feat: Support AI SDK 5.0. `ai.tool` now accepts either a schemaTask or a task with a provided jsonSchema

.changeset/five-nails-whisper.md

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+---
+"@trigger.dev/sdk": patch
+---
+
+External Trace Correlation & OpenTelemetry Package Updates.
+
+| Package | Previous Version | New Version | Change Type |
+|---------|------------------|-------------|-------------|
+| `@opentelemetry/api` | 1.9.0 | 1.9.0 | No change (stable API) |
+| `@opentelemetry/api-logs` | 0.52.1 | 0.203.0 | Major update |
+| `@opentelemetry/core` | - | 2.0.1 | New dependency |
+| `@opentelemetry/exporter-logs-otlp-http` | 0.52.1 | 0.203.0 | Major update |
+| `@opentelemetry/exporter-trace-otlp-http` | 0.52.1 | 0.203.0 | Major update |
+| `@opentelemetry/instrumentation` | 0.52.1 | 0.203.0 | Major update |
+| `@opentelemetry/instrumentation-fetch` | 0.52.1 | 0.203.0 | Major update |
+| `@opentelemetry/resources` | 1.25.1 | 2.0.1 | Major update |
+| `@opentelemetry/sdk-logs` | 0.52.1 | 0.203.0 | Major update |
+| `@opentelemetry/sdk-node` | 0.52.1 | - | Removed (functionality consolidated) |
+| `@opentelemetry/sdk-trace-base` | 1.25.1 | 2.0.1 | Major update |
+| `@opentelemetry/sdk-trace-node` | 1.25.1 | 2.0.1 | Major update |
+| `@opentelemetry/semantic-conventions` | 1.25.1 | 1.36.0 | Minor update |
+
+### External trace correlation and propagation
+
+We will now correlate your external traces with trigger.dev traces and logs when using our external exporters:
+
+```ts
+import { defineConfig } from "@trigger.dev/sdk";
+import { OTLPLogExporter } from "@opentelemetry/exporter-logs-otlp-http";
+import { OTLPTraceExporter } from "@opentelemetry/exporter-trace-otlp-http";
+
+export default defineConfig({
+  project: process.env.TRIGGER_PROJECT_REF,
+  dirs: ["./src/trigger"],
+  telemetry: {
+    logExporters: [
+      new OTLPLogExporter({
+        url: "https://api.axiom.co/v1/logs",
+        headers: {
+          Authorization: `Bearer ${process.env.AXIOM_TOKEN}`,
+          "X-Axiom-Dataset": "test",
+        },
+      }),
+    ],
+    exporters: [
+      new OTLPTraceExporter({
+        url: "https://api.axiom.co/v1/traces",
+        headers: {
+          Authorization: `Bearer ${process.env.AXIOM_TOKEN}`,
+          "X-Axiom-Dataset": "test",
+        },
+      }),
+    ],
+  },
+  maxDuration: 3600,
+});
+```
+
+You can also now propagate your external trace context when calling back into your own backend infra from inside a trigger.dev task:
+
+```ts
+import { otel, task } from "@trigger.dev/sdk";
+import { context, propagation } from "@opentelemetry/api";
+
+async function callNextjsApp() {
+  return await otel.withExternalTrace(async () => {
+    const headersObject = {};
+
+    // Now context.active() refers to your external trace context
+    propagation.inject(context.active(), headersObject);
+
+    const result = await fetch("http://localhost:3000/api/demo-call-from-trigger", {
+      headers: new Headers(headersObject),
+      method: "POST",
+      body: JSON.stringify({
+        message: "Hello from Trigger.dev",
+      }),
+    });
+
+    return result.json();
+  });
+}
+
+export const myTask = task({
+  id: "my-task",
+  run: async (payload: any) => {
+    await callNextjsApp()
+  }
+})
+```
+
+

.changeset/fluffy-mirrors-live.md

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+---
+"@trigger.dev/sdk": patch
+---
+
+Add jsonSchema support when indexing tasks