Market Data Summary

[GBRCenter]

@claude
Añade un market data summary, backend CLAUDE.md, archiva planning docs antiguos

[claude]

Claude finished @GBRCenter's task in 3m 0s —— View job • claude/issue-7-20260905-1253 • Create PR ➔

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Done ✅

Request: Add a market data summary, backend CLAUDE.md, and archive the old planning docs.

Todo

• Read issue and repo context
• Check current state of planning/MARKET_DATA_SUMMARY.md, backend/CLAUDE.md, and planning/archive/
• Fix the archiving of old market-data planning docs
• Commit and push
• Open PR

Summary

planning/MARKET_DATA_SUMMARY.md and backend/CLAUDE.md already existed and were up to date (from PR #6). The gap was the archiving itself: the root CLAUDE.md states market data implementation detail lives in planning/archive/, but the repo had the finished docs duplicated at the top of planning/ while planning/archive/ held stale, pre-implementation drafts of the same five files (dated as early as 2026-02-10, written before the code existed).

Fixed by:

• Moving the final, implementation-verified versions of MARKET_DATA_DESIGN.md, MARKET_DATA_REVIEW.md, MARKET_INTERFACE.md, MARKET_SIMULATOR.md, and MASSIVE_API.md into planning/archive/, replacing the stale drafts
• Removing the now-redundant copies from planning/ root
• Fixing one stale in-repo reference (planning/MARKET_DATA_SUMMARY.md) that pointed at the old root path instead of planning/archive/

planning/ now contains only PLAN.md and MARKET_DATA_SUMMARY.md as living top-level docs, plus REVIEW.md (a general plan review, left untouched — it wasn't part of the market-data doc set this issue referred to) and archive/ with the detailed market-data docs, matching what the root CLAUDE.md already documents.

Not done: no code changes were needed since the summary and backend guide already existed; this was purely a documentation-layout fix.