Bridge legacy QuoteJudge database columns

db/migrations/003_quotejudge_legacy_bridge.sql

@@ -0,0 +1,19 @@
+-- Bridge the earliest QuoteJudge schema and the current typed schema without
+-- dropping data or weakening historical NOT NULL constraints.
+ALTER TABLE quote_comparisons
+    ADD COLUMN IF NOT EXISTS recommendation_vendor TEXT,
+    ADD COLUMN IF NOT EXISTS weighted_score NUMERIC(10,4);
+
+UPDATE quote_comparisons
+SET recommendation_vendor = COALESCE(recommendation_vendor, recommended_vendor),
+    weighted_score = COALESCE(weighted_score, score)
+WHERE recommendation_vendor IS NULL OR weighted_score IS NULL;
+
+ALTER TABLE quote_execution_receipts
+    ADD COLUMN IF NOT EXISTS tool_name TEXT,
+    ADD COLUMN IF NOT EXISTS ok BOOLEAN;
+
+UPDATE quote_execution_receipts
+SET tool_name = COALESCE(tool_name, skill_name),
+    ok = COALESCE(ok, status = 'ok')
+WHERE tool_name IS NULL OR ok IS NULL;