fix(BUY-63030): route MCP catalog reads through primary db + fix list_categories unavailable flag#232
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fix(BUY-63030): route MCP catalog reads through primary db + fix list_categories unavailable flag#232BuyWhere wants to merge 1 commit into
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… list_categories unavailable flag Parent BUY-63027 is a SEV-1: MCP returned fabricated or empty catalog data. Changes: - Route MCP catalog reads (search_products, get_product, compare_products, get_deals, list_categories, find_best_price, discount-column probe) through primary db pool. - Fix list_categories meta.unavailable: set true when all rows are zero-count static fallback. - Cache-hit path recomputes unavailable from cached rows so callers always get corrected flag. Note: catalogDb routing was attempted but CATALOG_DATABASE_URL is not set on MCP service, causing catalogDb pool to fall back to wrong connection. Route reads through primary db. Refs: BUY-63027 BUY-63030
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Context
Parent BUY-63027 is a SEV-1 MCP regression: search/deals/categories returned fabricated or empty catalog data.
Changes
Note
catalogDb routing was attempted but CATALOG_DATABASE_URL is not set on the MCP service, causing catalogDb to fall back to non-existent connection. Reads route through primary db pool.
Refs: BUY-63027 BUY-63030
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