vscode-extension-v0.2.0

Added

• Playground — embedded chat surface powered by vscode.lm for interacting with CopilotKit agents directly in the editor.
• Playground scanner detects CopilotKit hooks and providers in your workspace, wires them into a local runtime, and hot-reloads on file saves.
• Fixture recording and replay — capture a conversation once, then re-run it deterministically for development and testing.
• Model picker via vscode.lm.selectChatModels with optional vscode.lm.tools forwarding.
• Tailwind v4 compile pass in the playground bundler for user component CSS.

Fixed

• SSE error handling for RUN_ERROR events now uses sentinel-based detection instead of message string comparison.
• Fixture store hardened: path traversal protection, version validation, name collision avoidance, corrupt file warnings.
• Anonymous default exports are now correctly included in the playground aggregator.
• Nested UnserializableRef values in provider props are correctly inlined in codegen output.