feat(API-11): Route API calls through AgilitonAPI gateway

Add gateway-first pattern: when AGILITON_API_KEY is set, route all
external API calls through the gateway with X-API-Key auth. Falls back
to direct API access when gateway is unavailable.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

node_modules/ajv/dist/vocabularies/validation/dependentRequired.js

@@ -0,0 +1,12 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const dependencies_1 = require("../applicator/dependencies");
+const def = {
+    keyword: "dependentRequired",
+    type: "object",
+    schemaType: "object",
+    error: dependencies_1.error,
+    code: (cxt) => (0, dependencies_1.validatePropertyDeps)(cxt),
+};
+exports.default = def;
+//# sourceMappingURL=dependentRequired.js.map