Merge main into karthik/shadcn-registry-2

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: karthikscale3

.changeset/clean-lights-boil.md

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+---
+"@workflow/world-postgres": patch
+---
+
+Increase default concurrency to 50

.changeset/dirty-bees-notice.md

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+---
+---

.changeset/e2e-wait-for-hook.md

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+---
+---
+
+Enable Vercel-prod e2e tests for the tanstack-start workbench now that the
+Vercel project is connected, and pin its `react`/`@types/react` versions to
+match `nextjs-turbopack` so pnpm dedupes them across the workspace (the
+mismatch was breaking the nextjs-turbopack and nextjs-webpack production
+builds with a `MotionStyle` type error coming from two `@types/react`
+copies).

.changeset/enable-tanstack-start-vercel-e2e.md

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+---
+---
+
+Fix the `tarballs` Vercel project so workspace dependencies are built before packing — without this, every preview tarball ships with an empty `dist/` directory and downstream installs fail to resolve `dist/*` entry points.

.changeset/fix-tarballs-build.md

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+---
+"@workflow/world-local": patch
+---
+
+Fix race in `events.create()` where concurrent `step_created` / `wait_created` writes with the same `correlationId` would both succeed instead of one losing with `EntityConflictError`.

.changeset/fix-world-local-step-created-race.md

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+---
+"@workflow/core": patch
+"@workflow/errors": patch
+"@workflow/builders": patch
+"@workflow/utils": patch
+---
+
+Friendlier workflow error messages. New `SerializationError`, `WorkflowBuildError`, and structured context-violation classes (e.g. `NotInWorkflowContextError`) with actionable hints and docs links applied to user-facing throw sites; `FatalError.is()` recognizes any error with `fatal: true` so context violations and serialization failures now fail fast instead of burning retry attempts. Runtime logs are namespaced under `[workflow-sdk]` and gain `errorAttribution` (`user` vs `sdk`) plus class-aware hints

.changeset/friendlier-errors.md

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+---
+---

.changeset/pr-comment-stale-banner-via-path.md

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+---
+"@workflow/core": patch
+"@workflow/errors": patch
+---
+
+Replace `util.inspect`'s default object dump for runtime structured-log metadata with an opinionated, workflow-aware formatter. The runtime logger uses color-coded metadata blocks.

.changeset/pretty-log-format.md

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+---
+"@workflow/builders": minor
+"@workflow/nitro": minor
+"@workflow/nest": minor
+"@workflow/next": minor
+"@workflow/sveltekit": minor
+"@workflow/astro": minor
+---
+
+Add `sourcemap` option to builders for disabling or customising source map emission on generated workflow bundles. Accepts the same values as esbuild's `sourcemap` option: `true`, `false`, `'inline'`, `'linked'`, `'external'`, `'both'`. Can also be set via the `WORKFLOW_SOURCEMAP` environment variable.
+
+Setting `sourcemap: false` drops inline source maps from the step, workflow and webhook bundles, and skips the source-map-support runtime shim on the Vercel step function — helpful for staying under the Vercel 250MB function size limit.
+
+Exposed per framework: `nitro.options.workflow.sourcemap`, `NestBuilderOptions.sourcemap`, `withWorkflow({ workflows: { sourcemap } })`, and the `sourcemap` option on `workflowPlugin()` for SvelteKit and Astro.
+
+Minor semantics change: when the `sourcemap` option (or `WORKFLOW_SOURCEMAP`) is set explicitly, it now applies to **all** generated bundles. Previously, the final workflow wrapper and webhook bundles could only be toggled via the legacy `WORKFLOW_EMIT_SOURCEMAPS_FOR_DEBUGGING=1` env var, which continues to work but is narrower in scope.