refactor(language-core): replace dynamic types generation with static files

[johnsoncodehk]

Summary

Replace dynamic global types generation with static declaration files to fix Yarn PnP compatibility.

🤖 This summary was written by AI (GitHub Copilot)

Problems with Old Approach

The previous system dynamically generated a global types file at node_modules/.vue-global-types/vue_3.x_xx.d.ts:

1. Breaks Yarn PnP: Yarn PnP doesn't create node_modules/ directory
2. Requires file writes: Needs filesystem write permissions
3. Complex logic: Path resolution, version detection, caching, cleanup

New Approach

How It Works

1. Static type files shipped with @vue/language-core:

   • types/template-helpers.d.ts - Volar helper types (__VLS_* utilities)
   • types/props-fallback.d.ts - Props fallback when checkUnknownProps: false
   • types/vue-3.4-shims.d.ts - GlobalComponents/GlobalDirectives for Vue < 3.5

2. Triple-slash directives reference these files in generated code:

/// <reference types="@vue/language-core/types/template-helpers.d.ts" />

TypeScript resolves this through normal package resolution.

3. Vue-specific types are generated inline using dynamic imports:

import('vue').ShallowUnwrapRef<T>

This is necessary because static files in @vue/language-core/types/ cannot import from the user's Vue package.

Why This Works

• ✅ Works with all package managers (npm, yarn, pnpm, Yarn PnP, bun)
• ✅ No file system writes needed
• ✅ Types are versioned with the package
• ✅ Simpler architecture

Breaking Changes

Configuration:

• vueCompilerOptions.globalTypesPath: (fileName) => string → vueCompilerOptions.typesRoot: string
• Default: "@vue/language-core/types"

Most users never customized this option.

Changes

Removed:

• lib/codegen/globalTypes.ts - Dynamic generation logic
• createGlobalTypesWriter() / writeGlobalTypes() functions
• File write operations to node_modules/

Added:

• types/template-helpers.d.ts - Helper types
• types/props-fallback.d.ts - Fallback types
• types/vue-3.4-shims.d.ts - Vue 3.4 shims

Modified:

• Generated code uses import('vue').XXX for Vue types
• All packages updated to remove dynamic type generation