fix(core): make state visible before finalize

[armancharan]

Issue for this PR

Closes #37422

#37422

Type of change

• Bug fix
• New feature
• Refactor / code improvement
• Documentation

What does this PR do?

State.commit ran finalize before assigning the new snapshot. Domains publish *.updated from finalize, so a client could refetch on the event and still see the old state.

Assign the rebuilt state first, then run finalize. Same ID schemas and transform behavior otherwise.

Note: this changes the finalize contract so get() already sees the new state while finalize runs.

How did you verify your code works?

• bun test test/state.test.ts test/agent.test.ts test/catalog.test.ts test/command.test.ts test/skill.test.ts
• added checks that read agent/command/skill/catalog state immediately on the update event

Screenshots / recordings

n/a

Checklist

• I have tested my changes locally
• I have not included unrelated changes in this PR

[github-actions]

Thanks for your contribution!

This PR doesn't have a linked issue. All PRs must reference an existing issue.

Please:

1. Open an issue describing the bug/feature (if one doesn't exist)
2. Add Fixes #<number> or Closes #<number> to this PR description

See CONTRIBUTING.md for details.