- definitive-guide.md → 2 parts (core/arch/config/commands + windows/plugins/websocket/state/migration)
- error-resolution-guide.md → 2 parts (build/config/plugin errors + runtime/platform/mobile errors)
- agent-prompts.md → 2 parts (system prompt/common tasks + advanced tasks/checklist/migration map)
- Updated README.md with new file structure and per-topic routing table
- All files under ~7.5k tokens, suitable for 8k context windows
- Cross-reference links between split parts