More initializers, and updated playground application

[0xWDG]

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[Copilot]

Pull Request Overview

This PR adds more initialization options for the DynamicUI struct and updates the playground application to showcase the framework across multiple platforms.

• Adds new @Binding-based initializers for DynamicUI that provide a more SwiftUI-native approach to handling component state changes
• Refactors existing views to use a new binding-based component handling mechanism instead of callback functions
• Expands the playground application to support watchOS alongside existing platforms

Reviewed Changes

Copilot reviewed 18 out of 18 changed files in this pull request and generated 2 comments.

File	Description
Sources/DynamicUI/DynamicUI.swift	Adds new binding-based initializers and maintains legacy callback support through a bridge
Sources/DynamicUI/Views/*.swift	Updates all dynamic view components to use the new binding-based component assignment
README.md	Documents the new API with examples and adds legacy usage section
Playground/*	Adds watchOS target and updates existing playground to use new binding-based API

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[Copilot]

Setting error to nil should happen before the JSON parsing attempt to ensure proper error state initialization. Currently, if parsing fails, the error is set but if it succeeds, the error is cleared - this creates a dependency on the order of operations.

[Copilot]

Pull Request Overview

Copilot reviewed 18 out of 18 changed files in this pull request and generated no new comments.

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