Milestone 0: import zappier billing, Verae middleware, and Zapier research

Compose-ready workspace: packages/zappier (rate card, portal, Stripe),
packages/verae-zapier-middleware (timestamp + NATS), packages/verae-zapier
(CLI app), vendor/zapier-platform, and research/zapier vendor corpus.

Gate 0 structure checks pass. Product code and research are not yet wired.

vendor/zapier-platform/packages/schema/test/functional-constraints/labelWhenVisible.js

@@ -0,0 +1,73 @@
+const should = require('should');
+const schema = require('../../schema');
+
+describe('labelWhenVisible', () => {
+  it('should not error when label is gone and action is hidden', () => {
+    const definition = {
+      version: '1.0.0',
+      platformVersion: '1.0.0',
+      creates: {
+        foo: {
+          key: 'foo',
+          noun: 'Foo',
+          display: {
+            hidden: true,
+          },
+          operation: {
+            perform: '$func$2$f$',
+          },
+        },
+      },
+    };
+
+    const results = schema.validateAppDefinition(definition);
+    results.errors.should.have.length(0);
+  });
+
+  it('should error when label is missing and action is visible ', () => {
+    const definition = {
+      version: '1.0.0',
+      platformVersion: '1.0.0',
+      creates: {
+        foo: {
+          key: 'foo',
+          noun: 'Foo',
+          display: {
+            hidden: false,
+          },
+          operation: {
+            perform: '$func$2$f$',
+          },
+        },
+      },
+    };
+
+    const results = schema.validateAppDefinition(definition);
+    results.errors.should.have.length(1);
+    const err = results.errors[0];
+    should(err.codeLinks[0].includes('BasicDisplaySchema')).be.true();
+    err.property.should.eql('instance.creates.foo.display');
+  });
+
+  it('should error when label is alone when create is visible ', () => {
+    const definition = {
+      version: '1.0.0',
+      platformVersion: '1.0.0',
+      creates: {
+        foo: {
+          key: 'foo',
+          noun: 'Foo',
+          display: {
+            label: 'nea',
+          },
+          operation: {
+            perform: '$func$2$f$',
+          },
+        },
+      },
+    };
+
+    const results = schema.validateAppDefinition(definition);
+    results.errors.should.have.length(1);
+  });
+});