feat: add 'can_be_assigned' field to users with updates to user creation, retrieval, and assignment queries

src/lib/queries/projects.js

@@ -148,7 +148,7 @@ export function getAllUsersForAssignment() {
 			`
 		SELECT id, name, username, role 
 		FROM users 
-		WHERE is_active = 1 AND role != 'admin'
+		WHERE is_active = 1 AND can_be_assigned = 1
 		ORDER BY name
 	`
 		)