v0.0.28

What's Changed

• docs(ops): add /verify-prod-signup command — HITL 3-region prod signup + residency verification by @msywulak in #3950
• fix(api): drop "staging" from prod data-residency region picker (#3948) by @msywulak in #3951
• fix(api): demo first-answer dead-end — union unpinned-default whitelist (#3947) by @msywulak in #3954
• fix(api): demo-only signup suppresses 'connect your database' onboarding email by @msywulak in #3953
• docs(roadmap): #3949 shipped — demo signup connect-DB nudge fix by @msywulak in #3955
• chore(deps): Group A within-major sweep — ai, better-auth, effect, hono, pg +30 by @msywulak in #3952
• fix(deploy): restore staging residency arm as non-selectable — unbreak api-staging boot (#3948) by @msywulak in #3957
• docs(roadmap): tidy — record #3947/#3948 fixes + the api-staging boot incident by @msywulak in #3959
• chore(deps): upgrade js-yaml 4→5 (semantic-layer YAML) by @msywulak in #3960

Full Changelog: v0.0.27...v0.0.28