feat(web_core, lit): implement createComponentImplementation and refactor basic catalog components

[josemontespg]

Description

This PR implements the createComponentImplementation helper function in @a2ui/web_core/v0_9 and re-exports it in @a2ui/lit/v0_9. It also refactors all 18 basic Lit components in renderers/web_core/src/v0_9/basic_catalog/components/ to use this new pattern.

Key Changes

• @a2ui/web_core/v0_9: Implement createComponentImplementation which pairs a ComponentApi definition, element constructor, and custom element tag name into a WebComponentImplementation.
• @a2ui/web_core/v0_9 basic catalog components: Refactor AudioPlayer, Button, Card, CheckBox, ChoicePicker, Column, DateTimeInput, Divider, Icon, Image, List, Modal, Row, Slider, Tabs, Text, TextField, and Video to export definitions using createComponentImplementation.
• @a2ui/lit/v0_9: Re-export createComponentImplementation from root index.
• Unit Tests: Added test suite in web_core/src/v0_9/catalog/types.test.ts verifying pairing of ComponentApi with tag names.

Testing

• Unit tests: passed (yarn --cwd renderers/web_core test, yarn --cwd renderers/lit test)
• Browser tests: passed (Karma headless)
• Explorer tests: passed (yarn --cwd renderers/lit/a2ui_explorer test:ci)
• Linters: passed (yarn --cwd renderers/web_core lint, yarn --cwd renderers/lit lint, yarn --cwd renderers/lit/a2ui_explorer lint)

[gemini-code-assist]

Code Review

This pull request introduces the createComponentImplementation helper function in @a2ui/web_core/v0_9 and refactors all basic catalog components to use it instead of manually defining their implementations. It also updates the Lit renderer to re-export this helper and refactors the corresponding test suite. A review comment points out a potential runtime TypeError in createComponentImplementation if apiOrImpl is null, since typeof null evaluates to 'object' and would crash on the 'tagName' in apiOrImpl check. A defensive guard is suggested to prevent this crash.

[josemontespg]

All comments addressed:

1. Reverted test changes: Reverted all changes to basic-catalog-a2ui-lit-element.test.ts so it remains completely untouched in this PR.
2. Types export: Removed createComponentImplementation from renderers/lit/src/v0_9/types.ts, keeping it exported only in index.ts.
3. Simplified createComponentImplementation: Streamlined the function to a clean 2-argument signature createComponentImplementation(api, element) with no options parameter. The tag name is derived automatically via customElements.getName(element) (with a2ui-${api.name.toLowerCase()} fallback) and registered in customElements.