Mirror docs/tsl/codegen into the bundled tsl-api-reference skill and rebuild the function index.
Remove invalid duplicate API entries for cb_delistedbydate, createhttpsession, exportJsonString, and Anova_Bartlett so exact lookup returns the canonical entries.
Move generated builtin and dotnet function docs into the upgraded taxonomy, remove legacy route pages, and regenerate function_index.tsv from markdown headings.