refactor(scan): stop emitting markdown contract artifacts

Remove generated `.ui-contract.md` and `.bdd.md` outputs from the scan
pipeline and documentation so downstream consumers rely on structured JSON
artifacts instead.

Also drop unused API `fieldRules` catalog output and remove stale app-map
references to UI contract files. Update legacy flow matching to preserve only
the nodes that directly matched the current entry.refactor(scan): stop emitting markdown contract artifacts

Remove generated `.ui-contract.md` and `.bdd.md` outputs from the scan
pipeline and documentation so downstream consumers rely on structured JSON
artifacts instead.

Also drop unused API `fieldRules` catalog output and remove stale app-map
references to UI contract files. Update legacy flow matching to preserve only
the nodes that directly matched the current entry.

test/html.test.js

@@ -229,7 +229,7 @@ test('parsePrototypeGuide extracts legacy flow references for matched entries',
 
   assert.equal(guide.legacyFlows.length, 1)
   assert.equal(guide.entries[0].flowRefs[0].tasks[0], '場地申請')
-  assert.ok(guide.entries[0].flowRefs[0].nodes.some((node) => node.nodeType === 'precondition'))
+  assert.ok(guide.entries[0].flowRefs[0].nodes.some((node) => node.nodeType === 'form'))
   assert.ok(guide.entries[0].flowRefs[0].nodes.some((node) => node.jsp.includes('zte450_01.jsp')))
 })
 
@@ -278,7 +278,8 @@ test('buildApiCatalog parses generic markdown API docs and matches routes', () =
   ])
 
   assert.ok(catalog.endpoints.some((endpoint) => endpoint.id === 'POST /api/v1/orders'))
-  assert.equal(catalog.fieldRules[0].field, 'orderName')
+  const ordersEndpoint = catalog.endpoints.find((endpoint) => endpoint.id === 'POST /api/v1/orders')
+  assert.equal(ordersEndpoint.fieldRules[0].field, 'orderName')
   const matches = matchApiEndpoints({
     prototype: 'orders/apply.html',
     page: 'apply.html',