refactor: remove name-indexed views from orchestrator template context

[peintnermax]

1. Remove *_by_name maps — use Liquid where filter instead

Templates now use {% assign passkey = actions | where: "name", "passkey" | first %} instead of actions_by_name.passkey. This eliminated the orchestrator-built lookup maps from template-context.ts, zitadel-login.ts, both liquid templates, and liquid.spec.ts.

2. Align mock registration with the default flow definition

The mock now has a two-step registration matching the default flow definition:

• Register step: email, given_name, family_name, date_of_birth fields + submit/passkey_register/sign_in actions
• Register-password step (new): password field + submit action

Changed files: login.ts fixtures, flow-machine.ts, handlers.ts, index.spec.ts.

All component tests (156) and mock tests (26) pass.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
nextgen	Ready	Preview, Comment	Jun 15, 2026 12:27pm