Function validate_session_role 

pub fn validate_session_role(role: &str) -> Result<(), CoercionError>

Validate a session role for workspace membership.

Arguments

• role - The role string to validate

Valid Values

• primary: Primary session for the workspace
• related: Related session
• dependency: Dependency session
• shared: Shared session

Returns

• Ok(()) if the role is valid
• Err(CoercionError) with helpful message if invalid