Feat: Team member leave endpoint

[Ayoobf]

Allow any team member (including leaders) to leave their current team. Special handling is required when the team leader leaves, which should trigger team disbandment.

Link to spec: https://rutgersconnect-my.sharepoint.com/:w:/g/personal/af940_em_rutgers_edu/EaxDKLS42aJAvBkPgIKlu5QBgZk9WiVYXw8V3Ut8lYuMjg?e=dwVkjK

Below is what the new user and teams object fields look like for future reference

Specifics

Method: POST
Path: /teams/leave
Return: 200 on successful leave, appropriate error codes for validation failures

Schema:

// Request body

{
  "auth_token": "string",
  "auth_email": "string",
  "team_id": "string"
}

// Response body (success)

{
  "statusCode": 200,
  "body": {
    "message": "Successfully left team",
  }
}

Implementation Logic:

• Validate user is actually a member of the specified team
• Remove user's email from team's members array
• Clear user's team_info object and set confirmed_team = false
• Special case: If leaving user is team leader, call team disband endpoint

Edge Cases:

• User tries to leave team they're not in
• Team already disbanded
• Concurrent leave operations
• Leader leaves when team has pending invitations

Team Disbandment Integration:

When team leader leaves, automatically trigger the disband workflow:

• Call /teams/disband endpoint internally
• Ensure all remaining members are properly cleaned up
• Handle any pending invitations to the disbanded team

Deliverables:

• Implement endpoint with validation and error handling
• Write unit tests including leader succession scenarios
• Integration testing with team disband functionality
  • Depending on time of creating this endpoint, the disband endpoint may not be done yet