The installer's mergeModuleHelpCatalogs was rewriting the merged catalog
under a different schema (module,phase,name,code,sequence,workflow-file,...)
than the documented source schema in every module's module-help.csv
(module,skill,display-name,menu-code,description,action,args,phase,...).
Worse, the parsing assumed the wrong source column order, so column data
was scrambled in the merged output. SKILL.md docs the source schema, so
the bmad-help skill was navigating a catalog whose actual columns no
longer matched its mental model.
Drop the transformation and the agent enrichment columns (which had no
consumers anywhere in the codebase). Emit rows verbatim in the source
schema, padding short rows and filling empty module fields. Sort by
module then phase, stable within phase to preserve authored order.
Closes#2278