First login email should offer account creation with optional community newsletter opt-in with a different email

[misterflop]

Description When a user signs in for the first time (which is effectively a registration), the email currently only proposes Complete Login.

We should improve this by:

• Making it explicit that the first login is also a registration.
• Adding a second call-to-action in the email:
  • Create Account & Subscribe to Community Communications (register + opt-in + login) & Complete Login (default path)
  • Create Account & Complete Login

Why

• Clarifies the difference between login and register.
• Provides an opportunity to grow the community at the right moment.
• Improves user onboarding transparency and process.

Acceptance Criteria

• Email template updated with two buttons.
• Backend logic distinguishes first login from subsequent logins.
• Selecting the “Subscribe” option automatically adds user optin to community communications.