refactor: make inventory images the publication source

Remove the temporary listing-level image count from the schema, validation, DTO, and draft contract. Publication now requires the persisted inventory image repository count. Add migration 0009 and update listing tests and implementation status. Verification: npm test passed 62 tests and integration passed 14 tests. No build script is configured in this repository.

apps/api/tests/application/listing-service.test.js

@@ -26,7 +26,6 @@ test('creates a draft listing only after the listing publish requirements are me
     categoryId: 'category-id',
     conditionId: 'condition-id',
     askingPriceMinor: 2499,
-    imageCount: 2,
     notes: ' Near mint ',
   });
 
@@ -37,7 +36,6 @@ test('creates a draft listing only after the listing publish requirements are me
     categoryId: 'category-id',
     conditionId: 'condition-id',
     askingPriceMinor: 2499,
-    imageCount: 2,
     status: 'DRAFT',
     notes: 'Near mint',
   });
@@ -50,9 +48,8 @@ test('creates a draft listing only after the listing publish requirements are me
         categoryId: 'category-id',
         conditionId: 'condition-id',
         askingPriceMinor: 0,
-        imageCount: 2,
       }),
-    (error) => error.code === 'LISTING_REQUIREMENTS_NOT_MET',
+    /Asking price must be a positive integer minor unit/,
   );
 
   assert.equal(created.length, 1);
@@ -70,7 +67,6 @@ test('publishes an owned draft only when its persisted requirements are met', as
           categoryId: 'category-id',
           conditionId: 'condition-id',
           askingPriceMinor: 2499,
-          imageCount: 2,
           status: 'DRAFT',
         };
       },
@@ -79,6 +75,11 @@ test('publishes an owned draft only when its persisted requirements are met', as
         return { id, status };
       },
     },
+    inventoryImageRepository: {
+      async countByInventoryItemId() {
+        return 2;
+      },
+    },
   });
 
   assert.deepEqual(
@@ -119,7 +120,6 @@ test('does not publish a listing for sold or archived inventory', async () => {
             categoryId: 'category-id',
             conditionId: 'condition-id',
             askingPriceMinor: 2499,
-            imageCount: 2,
             inventoryStatus,
             status: 'DRAFT',
           };
@@ -128,6 +128,11 @@ test('does not publish a listing for sold or archived inventory', async () => {
           throw new Error('A blocked listing must not be updated.');
         },
       },
+      inventoryImageRepository: {
+        async countByInventoryItemId() {
+          return 2;
+        },
+      },
     });
 
     await assert.rejects(