feat: resolve 8 enhancement issues — Angular, Laravel, KiloCode, global install, uninstall, Warp, Augment, add-skill

- Add Angular stack guidelines (50 rows) with signals, standalone components, defer blocks (#203)
- Add Laravel stack guidelines (50 rows) with Blade, Livewire, Inertia.js (#105)
- Add KiloCode platform support (.kilocode/skills/) as Roo Code fork (#89)
- Add global install mode: `uipro init --global` installs to ~/ (#75)
- Add uninstall command: `uipro uninstall` with auto-detect (#185)
- Add Warp platform support (#88)
- Add Augment platform support (#41)
- Add skill.json manifest for add-skill registry (#95)
- Update README with new platforms, stacks, CLI commands