Module parser/rules/block/module/resolve

Unified resolver that walks a parsed AST and expands dynamic modules.

Handles three module families in a single traversal:

• ListPages — fetches page data via DataProvider.fetchListPages, resolves @URL parameters from the page path (HPC support), and expands %%variable%% templates.
• ListUsers — fetches user data via DataProvider.fetchListUsers and expands %%variable%% templates.
• IfTags — evaluates tag conditions against the current page's tags (from DataProvider.getPageTags) and keeps or discards content.

The main entry point is resolveModules.