feat!: migrate to unthrown 1.0.0

[btravers]

Summary

Upgrades to unthrown 1.0.0, which renames the result constructors to PascalCase: ok → Ok, err → Err, defect → Defect. Follows the original neverthrow→unthrown migration (#263, merged) and the 0.2.0 upgrade.

What changed

• Constructor rename ok/err/defect → Ok/Err/Defect across all imports and call sites (source, tests, examples).
• Unchanged (verified): the result.match({ ok, err, defect }) handler keys stay lowercase (they're object keys, not constructors); matchTags / TaggedError / fromPromise / fromSafePromise / .toAsync(); and result.isOk() / isErr() / isDefect() narrowing.
• Deps: unthrown + @unthrown/vitest catalog → 1.0.0; published packages' unthrown peer range → ^1.
• Docs / agent rules / migration guide updated for the new constructor names; the guide's stale "free functions narrow, methods don't" rationale is dropped (methods narrow since 0.2.0) and replaced with the maintenance motivation (supermacro/neverthrow#670).
• major changeset for all four packages (the unthrown ^1 peer bump + constructor rename are breaking for consumers who construct results directly).

Verification

typecheck · oxlint · oxfmt · knip · 271 unit tests · integration tests (8/8 turbo tasks) · docs build — all green.

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Updates the repo to unthrown@1.0.0, migrating constructor usage from ok/err/defect to Ok/Err/Defect across packages, tests, examples, and documentation, and bumps the unthrown peer range to ^1 for published packages.

Changes:

• Bumped unthrown + @unthrown/vitest to 1.0.0 via the pnpm catalog + lockfile updates.
• Renamed ok/err constructor usage to Ok/Err across worker/client/contract source and tests.
• Updated docs, agent rules, and added a major changeset describing the breaking change.

Reviewed changes

Copilot reviewed 29 out of 30 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
pnpm-workspace.yaml	Bumps catalog versions for unthrown and @unthrown/vitest to 1.0.0.
pnpm-lock.yaml	Updates lockfile entries to reflect unthrown@1.0.0 and @unthrown/vitest@1.0.0.
packages/worker/src/workflow.ts	Updates docs/comments referencing Err(...) in workflow context docs.
packages/worker/src/errors.ts	Updates error docs to refer to Err(...) branch naming.
packages/worker/src/child-workflow.ts	Migrates runtime constructor calls/imports from ok/err to Ok/Err.
packages/worker/src/cancellation.ts	Migrates cancellation helpers to use Ok/Err constructors and updates docstrings.
packages/worker/src/cancellation.spec.ts	Updates test descriptions/comments for Err(...) naming.
packages/worker/src/activity.ts	Updates docs/comments describing Err(...) behavior at activity boundaries.
packages/worker/src/activity.spec.ts	Migrates tests to import/use Ok/Err (and derived okAsync/errAsync helpers).
packages/worker/src/tests/worker.spec.ts	Migrates worker integration tests to import/use Ok/Err.
packages/worker/package.json	Bumps unthrown peer dependency range to ^1.
packages/contract/src/result-async.ts	Updates internal docs to refer to Ok/Err constructors.
packages/contract/src/result-async.spec.ts	Migrates contract tests to import/use Ok/Err.
packages/contract/package.json	Bumps unthrown peer dependency range to ^1.
packages/client/src/schedule.ts	Migrates schedule client logic to import/use Ok/Err.
packages/client/src/internal.ts	Migrates internal client helpers to import/use Ok/Err and updates docs.
packages/client/src/client.ts	Migrates typed client constructors/imports to Ok/Err across operations.
packages/client/package.json	Bumps unthrown peer dependency range to ^1.
examples/order-processing-worker/src/application/activities.ts	Updates example activity docs/comments to reference Err(...) naming.
docs/guide/worker-usage.md	Updates guide examples to use Ok/Err constructors (import inconsistency noted).
docs/guide/troubleshooting.md	Updates troubleshooting examples/comments for Ok/Err (import inconsistency noted).
docs/guide/result-pattern.md	Updates result-pattern docs to reference Err(...) constructor naming.
docs/guide/migrating-to-unthrown.md	Updates migration guide for unthrown@1 constructor naming + narrowing notes.
docs/guide/entry-points.md	Updates guide code blocks to Ok(...) usage (import inconsistency noted).
docs/guide/client-usage.md	Updates guide client mock example to return Ok(...) (import inconsistency noted).
docs/guide/activity-handlers.md	Updates guide mock activity examples to return Ok(...) (import inconsistency noted).
AGENTS.md	Updates agent guidance to reference Err(...).toAsync() for modeled failures.
.changeset/unthrown-v1.md	Adds major changeset describing the breaking rename + peer bump.
.agents/rules/workflow-determinism.md	Updates determinism rule docs to reference Err(...) cancellation behavior.
.agents/rules/handlers.md	Updates handler rules to reference Ok/Err(...).toAsync() and Err(...) cancellation branch.

Files not reviewed (1)

• pnpm-lock.yaml: Generated file