feat(KB-503): add multi-project CLI support with project subcommands

- Add project subcommands: list, add, remove, show, set-default, detect
- Add --project flag support for all task commands
- Create project-context.ts utilities for project resolution
- Add defaultProjectId to GlobalSettings type
- Implement project auto-detection from cwd
- Update CLI argument parsing for global --project flag
- Add multi-project CLI documentation to AGENTS.md

packages/dashboard/app/components/SettingsModal.tsx

@@ -167,6 +167,9 @@ export function SettingsModal({
     };
   }, [activeSection, loadAuthStatus]);
 
+  /** Get the scope of the currently active section */
+  const activeSectionScope = SETTINGS_SECTIONS.find((s) => s.id === activeSection)?.scope;
+
   const handleLogin = useCallback(async (providerId: string) => {
     setAuthActionInProgress(providerId);
     try {