chore: update README and CLI usage for cursor_gen, version bump to 1.0.1

- Changed CLI usage instructions from `dart run cursor_gen` to `cursor_gen` for global activation.
- Updated project-brief.yaml example and README to reflect new command usage.
- Added app_context section in project-brief.yaml for theme variants and RBAC roles.
- Fixed bundled template resolution for local and global installs to prevent 'Template not found' errors.
- Version bump to 1.0.1 with corresponding updates in CHANGELOG and pubspec.yaml.

flutter-cursor-templates/templates/rules/universal/ui-ux-standards.mdc.tmpl

@@ -5,6 +5,12 @@ alwaysApply: true
 
 # UI / UX Standards — {{PROJECT_NAME}}
 
+## Theme & design tokens (single source of truth)
+- Define **one** light/dark `ThemeData` (and optional `ThemeExtension`s for brand spacing, radii, semantic colors). Feature code reads `Theme.of(context)` only.
+- **Colors:** `colorScheme` / extensions — never hex/`Color(...)` literals in widgets except inside the theme definition file(s).
+- **Typography:** `textTheme` / `primaryTextTheme` — never raw `TextStyle(fontSize:, fontFamily:)` in feature UI.
+- **Spacing & shapes:** `ThemeExtension` or documented constants consumed consistently — avoid one-off magic numbers for padding/radius.
+
 ## Loading states
 - Every async operation MUST show a loading skeleton (shimmer), NOT a spinner unless < 300ms
 - Use `shimmer` package with a shimmer that matches the final layout shape
@@ -39,3 +45,4 @@ alwaysApply: true
 - All interactive widgets must have a `Semantics` label or `tooltip`
 - Minimum contrast ratio: 4.5:1 (WCAG AA)
 - Test with TalkBack / VoiceOver before each release
+{{HIGH_CONTRAST_UX_LINE}}