fix: expand compatibility.verification_method CHECK to include vendor_compat + spec_match

sql/042-expand-verification-method.sql

@@ -0,0 +1,17 @@
+-- Migration 042 — Expand compatibility.verification_method CHECK constraint
+-- Adds vendor_compat (Flexoptix search API match) and spec_match (form-factor inference)
+-- to the existing set of allowed verification methods.
+
+ALTER TABLE compatibility
+  DROP CONSTRAINT IF EXISTS compatibility_verification_method_check;
+
+ALTER TABLE compatibility
+  ADD CONSTRAINT compatibility_verification_method_check
+  CHECK (verification_method IN (
+    'tested',
+    'vendor_matrix',
+    'vendor_compat',
+    'spec_match',
+    'datasheet',
+    'community'
+  ));