fix: CREATE audit table IF NOT EXISTS before ALTER in migration 042

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend-compliance/migrations/042_company_profile_project_id.sql

@@ -59,7 +59,18 @@ BEGIN
     END IF;
 END $$;
 
--- 7. Add audit log project_id column too
+-- 7. Create audit table if not exists, then add project_id
+CREATE TABLE IF NOT EXISTS compliance_company_profile_audit (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id VARCHAR(255) NOT NULL,
+    action VARCHAR(20) NOT NULL,
+    changed_fields JSONB,
+    changed_by VARCHAR(255),
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_company_profile_audit_tenant ON compliance_company_profile_audit(tenant_id);
+
 ALTER TABLE compliance_company_profile_audit
     ADD COLUMN IF NOT EXISTS project_id UUID;