Create new dsl-lite project structure

[rafbcampos]

Setup dsl-lite project structure in player-ui/tools repository

Description:

Create a new package in the player-ui/tools/language directory called dsl-lite that will serve as our lightweight JSX compiler for Player-UI content. This package will provide a performant alternative to the current React-based DSL compilation approach (RFC).

Tasks:

• Initialize new package structure in player-ui/tools/language/dsl-lite
• Add BUILD file for bazel integration with appropriate jsxFactory and jsxFragment configurations
• Set up tsup configuration for the build
• Create basic folder structure for the project
• Create entry points and export paths
• Add basic README with project description and purpose

Acceptance Criteria:

• Package can be built using bazel
• Package can be referenced from other packages in the monorepo
• TypeScript configuration is set up correctly
• Project contains all necessary entry points and export paths