refactor: remove API suffix from module files

[jderochervlk]

Summary

This refactor removes the API suffix from generated WebAPI module names so the public surface matches the underlying API names more directly.

Examples:

• WebAPI.DOMAPI -> WebAPI.DOM
• WebAPI.CanvasAPI -> WebAPI.Canvas
• WebAPI.FetchAPI -> WebAPI.Fetch

This also changes the publish tag to pre-alpha to avoid interrupting anyone using the experimental tag until we've resolved the changes we want to make during the retreat. Doc publishing is also disabled until we can have the alpha ready.

What changed

• Renamed generated top-level modules and nested module directories across src/
• Updated generated open statements and cross-module references to use the new names
• Updated tests and documentation to reflect the renamed modules
• Adjusted the generator emitter so module names and generated opens are normalized automatically instead of keeping the API suffix

Notes

This is a breaking refactor for consumers that import or reference the old *API module names. Existing code will need to update imports and type/module references accordingly.