feat(type): support intrinsics Capitalize, Uppercase, Lowercase, Uncapitalize

[marcj]

Supports now expressions like these

type A = `Prefix_${Uppercase<'hello' | 'world'>}_Suffix`

which will be expanded to

type T = 'Prefix_HELLO_Suffix' | 'Prefix_WORLD_Suffix'

[Copilot]

Pull Request Overview

This PR adds support for TypeScript's built-in string manipulation intrinsic types (Uppercase, Lowercase, Capitalize, and Uncapitalize) to the Deepkit type system. These intrinsics enable compile-time string transformations in the type reflection system.

• Implements handling for the four string intrinsic types in both the compiler and runtime processor
• Adds comprehensive test coverage for basic functionality including unions and template literals
• Extends the extractPackStructOfTypeReference method signature to accept Identifier types for intrinsic processing

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
packages/type/tests/intrinsics.spec.ts	New test file covering basic intrinsic operations, unions, and template literal integration
packages/type/src/reflection/type.ts	Adds a debugger statement (should be removed) in template literal stringification
packages/type/src/reflection/processor.ts	Implements runtime handling for intrinsic operations with helper functions for each type, adds missing semicolon
packages/type-spec/src/type.ts	Defines TypeIntrinsic enum and adds intrinsic operation to ReflectionOp
packages/type-compiler/tests/transpile.spec.ts	Adds transpilation test for intrinsic types
packages/type-compiler/src/compiler.ts	Implements compiler support for detecting and processing intrinsic keywords, refactors extractPackStructOfTypeReference to handle identifiers

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[Coderah]

amazing thank you for doing that so quickly! fully missed your discord chat but really appreciate the assistance :D