Creates docs/ with three audience-specific guides:
- docs/user-guide.md: step-by-step form-filling instructions, field
descriptions, FX rate explanation, receipt handling, troubleshooting
- docs/admin-guide.md: deployment instructions and exhaustive config.yml
key/value reference with types, defaults, and constraints
- docs/developer-guide.md: architecture overview, full state model, all
CFG key mappings, PDF engine internals, column positions, four-pass build
process, common modification checklists, known limitations
Rewrites CLAUDE.md as a dense agent reference covering the same ground
in a compact format: code section line ranges, full config key table with
JS access patterns, validation rules, PDF coordinate system, design
decisions, and modification checklists.
https://claude.ai/code/session_01Dad69NPna53u4hucCYnVNs
