fix: Extract emulator to @workos/emulate

[gjtorikian]

Summary

• Replace the in-tree emulator (src/emulate/, ~12k lines) with the standalone @workos/emulate package, so the emulator can ship and version independently of the CLI
• Promote workos emulate from hidden beta to a visible command with -p/-s/-i flags and help-json registration
• Remove hono/@hono/node-server direct dependencies (now transitive through the package)
• Delete route codegen scripts (gen-routes, check-coverage) that only served the in-tree emulator
• Rewrite emulate.spec.ts to mock @workos/emulate instead of standing up a real server

[greptile-apps]

Greptile Summary

This PR extracts the ~12k-line in-tree WorkOS emulator (src/emulate/) into the standalone @workos/emulate package and promotes workos emulate from a hidden beta to a public command with -p/-s/-i flags.

• src/commands/emulate.ts is slimmed to a thin wrapper around @workos/emulate; the previously reported unhandled-rejection on shutdown is now fixed with a two-argument .then().
• src/bin.ts swaps the emulate and dev command implementations: dev (hidden) now runs runDev, while the new visible emulate runs runEmulate with the full flag set registered in help-json.ts.
• src/commands/emulate.spec.ts is rewritten to mock @workos/emulate rather than standing up a real server, covering port forwarding, JSON output, seed file loading, and auto-detection.

Confidence Score: 5/5

Safe to merge — the change is a well-scoped extraction of the in-tree emulator into an external package with no functional regressions visible in the changed paths.

Previously flagged issues (shutdown rejection, seed-not-found JSON mode) are both addressed in this version. The test rewrite correctly mocks the external package and handles signal-listener cleanup. The command-name swap in bin.ts is consistent with the new help-json registration.

No files require special attention.

Important Files Changed

Filename	Overview
src/commands/emulate.ts	Thin wrapper around @workos/emulate; shutdown fix applied (.then with two handlers), seed loading and exitWithError usage are correct
src/commands/emulate.spec.ts	Tests rewritten to mock @workos/emulate; covers port, JSON output, seed file loading, and auto-detection; signal-listener cleanup looks correct
src/bin.ts	emulate/dev command names swapped; emulate promoted to visible with -p/-s/-i flags and correct defaults; dev remains hidden
src/commands/dev.ts	Import updated from in-tree emulator to @workos/emulate; JSDoc comment ordering reorganised with no logic changes
src/utils/help-json.ts	New emulate entry added with correct port/seed/interactive options and aliases matching bin.ts definitions
package.json	@workos/emulate ^0.1.0 added; hono and @hono/node-server removed as direct deps; gen:routes and check:coverage scripts removed

_{Reviews (3): Last reviewed commit: "style: Format emulate.ts" | Re-trigger Greptile}