chore: bump cursor_templates_version to 1.0.4 and update related files

- Updated cursor_templates_version in project-brief.yaml to 1.0.4 for reproducibility.
- Enhanced CHANGELOG with fixes and features for version 1.0.4, including improved template resolution for global installs.
- Updated pubspec.yaml and VERSION file to reflect the new version.
- Added new templates for AGENTS.md and lefthook.yaml to the generator.
- Adjusted tests to include new root-level files in the output.

This release addresses template resolution issues and introduces new repo-level configuration files.

flutter-cursor-templates/CHANGELOG.md

@@ -1,5 +1,20 @@
 # Changelog
 
+## [1.0.4] - 2026-05-13
+### Fixed
+- Global `dart pub global` installs: locate `templates/` from the package root containing `pubspec.yaml` (not under `lib/`).
+
+## [1.0.3] - 2026-05-13
+### Fixed
+- Template directory resolution for `dart pub global` snapshot installs; fail fast when the bundle is missing instead of emitting placeholders.
+
+### Added
+- Generated repo-root `AGENTS.md` and `lefthook.yaml` (from `templates/root/`).
+
+## [1.0.2] - 2026-05-13
+### Changed
+- Interactive wizard collects the remaining `project-brief.yaml` fields (design, API docs, features, conditional E2E tool and locales) and pins `cursor_templates_version` from a single `kCursorTemplatesVersion` constant.
+
 ## [1.0.1] - 2026-05-13
 ### Fixed
 - Resolve bundled templates for local, Git, and hosted/global installs so generated files contain real content instead of `Template not found` placeholders.