Clean up TUI package and refactor component structure

- Remove old TUI implementation and components (LoadingAnimation, MarkdownComponent, TextComponent, TextEditor, WhitespaceComponent)
- Rename components-new to components with new API (Loader, Markdown, Text, Editor, Spacer)
- Move Text and Input components to separate files in src/components/
- Add render caching to Text component (similar to Markdown)
- Add proper ANSI code handling in Text component using stripVTControlCharacters
- Update coding-agent to use new TUI API (requires ProcessTerminal, uses custom Editor subclass for key handling)
- Remove old test files, keep only chat-simple.ts and virtual-terminal.ts
- Update README.md with new minimal API documentation
- Switch from tsc to tsgo for type checking
- Update package dependencies across monorepo

packages/ai/package.json

@@ -12,10 +12,10 @@
 	"scripts": {
 		"clean": "rm -rf dist",
 		"generate-models": "npx tsx scripts/generate-models.ts",
-		"build": "npm run generate-models && tsc -p tsconfig.build.json",
-		"dev": "tsc -p tsconfig.build.json --watch --preserveWatchOutput",
-		"dev:tsc": "tsc -p tsconfig.build.json --watch --preserveWatchOutput",
-		"check": "biome check --write .",
+		"build": "npm run generate-models && tsgo -p tsconfig.build.json",
+		"dev": "tsgo -p tsconfig.build.json --watch --preserveWatchOutput",
+		"dev:tsc": "tsgo -p tsconfig.build.json --watch --preserveWatchOutput",
+		"check": "biome check --write . && tsgo --noEmit",
 		"test": "vitest --run",
 		"prepublishOnly": "npm run clean && npm run build"
 	},