* feat: enable company member invitations
Activate the invite form in company settings, show pending invitations,
fix the existing-user invite flow, and process invite tokens after login.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix: address Greptile review — MFA invite flow and secure cookie flag
Process invite token after MFA verification so MFA-enabled users
joining via invite are not silently dropped. Add secure flag on
the invite cookie when served over HTTPS.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>