checkRemoteAgentEligibility function
Check remote agent eligibility.
Verifies authentication, plan tier, feature flags, and other prerequisites for launching a remote Neomage session.
Implementation
Future<EligibilityResult> checkRemoteAgentEligibility() async {
// In the Dart port, this checks:
// 1. User is logged in
// 2. Has appropriate plan tier (Max, etc.)
// 3. Feature flags are enabled
// 4. No policy restrictions
// Stub: assume eligible if we get this far.
return const EligibilityResult.eligible();
}