fix(enrichment): case-insensitive Enrow find billing

getCost compared qualification to exactly 'valid' while the cascade
normalizes with toLowerCase(), so a differently-cased API qualifier could
zero out billing on a valid email. Lowercase before comparing; add a test.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: TheodoreSpeaks

apps/sim/tools/enrow-hosting.test.ts

@@ -36,10 +36,13 @@ describe('Enrow hosted key config', () => {
 })
 
 describe('Enrow find_email pricing', () => {
-  it('charges 1 credit when qualification is valid', () => {
+  it('charges 1 credit when qualification is valid (case-insensitive)', () => {
     expect(cost(enrowFindEmailTool, {}, { qualification: 'valid' }).cost).toBeCloseTo(
       1 * ENROW_CREDIT_USD
     )
+    expect(cost(enrowFindEmailTool, {}, { qualification: 'VALID' }).cost).toBeCloseTo(
+      1 * ENROW_CREDIT_USD
+    )
   })
 
   it('charges 0 credits when qualification is invalid', () => {

apps/sim/tools/enrow/find_email.ts

@@ -47,8 +47,9 @@ export const enrowFindEmailTool: ToolConfig<EnrowFindEmailParams, EnrowFindEmail
   version: '1.0.0',
 
   hosting: enrowHosting<EnrowFindEmailParams>((_params, output) => {
-    // 1 credit charged only when a valid email is returned
-    return output.qualification === 'valid' ? 1 : 0
+    // 1 credit charged only when a valid email is returned. Compare
+    // case-insensitively so the API's qualifier casing can't zero out billing.
+    return String(output.qualification ?? '').toLowerCase() === 'valid' ? 1 : 0
   }),
 
   params: {