chore(DF-832): bump @defra/forms-model to 3.0.648 (DF-832) (#791)

* chore(deps): bump @defra/forms-model to 3.0.648 (DF-832)

Picks up DF-832 payment changes:
- feat(model): add conditional amounts and email prepopulation to PaymentField (#1384)
- fix(model): update paymentAmountSchema min to 0 (#1397)

Enables saving PaymentField forms with options.amount: 0 (no payment by
default) and accepts conditionalAmounts / emailField options.

DF-832

* test(definition): update payment amount tests for min(0) schema (DF-832)

paymentAmountSchema minimum changed from 0.3 to 0 in
@defra/forms-model 3.0.648. Update assertions to match new semantics:

- "greater than or equal to 0.3" error message → "0"
- amount: 0 (no payment) now valid
- amount: 0.1 now valid
- Added 0 as the new minimum boundary test case

DF-832

Author: mokhld

package-lock.json

@@ -43,7 +43,7 @@
   "dependencies": {
     "@aws-sdk/client-s3": "^3.995.0",
     "@aws-sdk/client-sns": "^3.995.0",
-    "@defra/forms-model": "^3.0.645",
+    "@defra/forms-model": "^3.0.648",
     "@defra/hapi-tracing": "^1.29.0",
     "@elastic/ecs-pino-format": "^1.5.0",
     "@hapi/hapi": "^21.4.4",

package.json

@@ -160,7 +160,7 @@ describe('definition helpers', () => {
       const definition = buildDefinition({ pages: [paymentPage] })
       const res = postSchemaValidation(definition)
       expect(res).toBeInstanceOf(Joi.ValidationError)
-      expect(res?.message).toBe('"value" must be greater than or equal to 0.3')
+      expect(res?.message).toBe('"value" must be greater than or equal to 0')
     })
 
     it('should return error if payment enabled but ref num disabled', () => {
@@ -190,8 +190,6 @@ describe('definition helpers', () => {
   describe('validatePaymentAmount', () => {
     it.each([
       { amount: -10, desc: 'negative' },
-      { amount: 0, desc: 'zero' },
-      { amount: 0.1, desc: 'below minimum (£0.30)' },
       { amount: 100_001, desc: 'above maximum (£100,000)' },
       { amount: NaN, desc: 'NaN' },
       { amount: Infinity, desc: 'Infinity' }
@@ -203,7 +201,9 @@ describe('definition helpers', () => {
     )
 
     it.each([
-      { amount: 0.3, desc: 'minimum boundary (£0.30)' },
+      { amount: 0, desc: 'zero / no payment (minimum boundary)' },
+      { amount: 0.1, desc: '£0.10' },
+      { amount: 0.3, desc: '£0.30' },
       { amount: 1, desc: '£1' },
       { amount: 100_000, desc: 'maximum boundary (£100,000)' }
     ])(