docs(33): add summaries for plans 01 and 02 (wave 1 complete)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.planning/phases/33-currency-system/33-01-SUMMARY.md

@@ -0,0 +1,38 @@
+# Plan 33-01 Summary
+
+**Status:** Complete
+**Completed:** 2026-04-13
+
+## What Was Built
+
+Database schema foundation for market-aware pricing and a currency conversion service.
+
+### Key Changes
+- Added `market_prices` table (globalItemId, market, currency, priceCents, source) with unique constraint
+- Added `community_prices` table (globalItemId, userId, market, currency, priceCents, priceDate, sourceType) with unique constraint
+- Added `priceCurrency` column to items table (default 'EUR')
+- Added `foundPriceCents`, `foundPriceCurrency`, `foundPriceDate` columns to thread_candidates
+- Created currency.service.ts with frankfurter.app rate fetching, 24h caching, and conversion math
+- Added Zod schemas for market price and community price validation
+- Exported new types (MarketPrice, CommunityPrice, UpsertMarketPrice, SubmitCommunityPrice)
+
+### Key Files Created/Modified
+- `src/db/schema.ts` — New tables + columns
+- `src/shared/schemas.ts` — New validation schemas
+- `src/shared/types.ts` — New type exports
+- `src/server/services/currency.service.ts` — Exchange rate service
+- `tests/services/currency.service.test.ts` — 12 unit tests
+
+## Self-Check: PASSED
+
+- [x] market_prices table defined with correct columns and constraint
+- [x] community_prices table defined with correct columns and constraint
+- [x] items.priceCurrency column added
+- [x] threadCandidates foundPrice fields added
+- [x] Currency service fetches, caches, converts
+- [x] All 12 tests pass
+
+## Decisions Made
+- Used separate tables for market prices and community prices (not JSONB)
+- EUR as default price currency matching existing data assumption
+- Module-level caching for exchange rates (simple, effective for single-process)