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/lib/functional-constraints/index.js

@@ -0,0 +1,41 @@
+'use strict';
+
+/* Each check below is expected to return a list of ValidationSchema errors. An error is defined by:
+ *   new jsonschema.ValidationError(
+ *     message, // string that explains the problem, like 'must not have a URL that points to AWS'
+ *     instance, // the snippet of the app definition that is invalid
+ *     schema, // name of the schema that failed, like '/TriggerSchema'
+ *     propertyPath, // stringified path to problematic snippet, like 'instance.triggers.find_contact'
+ *     name, // optional, the validation type that failed. Can make something up like 'invalidUrl'
+ *     argument // optional
+ *   );
+ */
+const checks = [
+  require('./searchOrCreateKeys'),
+  require('./deepNestedFields'),
+  require('./mutuallyExclusiveFields'),
+  require('./requiredSamples'),
+  require('./matchingKeys'),
+  require('./labelWhenVisible'),
+  require('./uniqueInputFieldKeys'),
+  require('./bufferedCreateConstraints'),
+  require('./requirePerformConditionally'),
+  require('./pollingThrottle'),
+  require('./AuthFieldisSafe'),
+  require('./inputFieldGroupsConstraints'),
+  require('./validateJsonFieldSchema'),
+];
+
+const runFunctionalConstraints = (definition, mainSchema) => {
+  return checks.reduce((errors, checkFunc) => {
+    const errorsForCheck = checkFunc(definition, mainSchema);
+    if (errorsForCheck) {
+      errors = errors.concat(errorsForCheck);
+    }
+    return errors;
+  }, []);
+};
+
+module.exports = {
+  run: runFunctionalConstraints,
+};