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/@modelcontextprotocol/sdk/dist/cjs/validation/ajv-provider.d.ts

@@ -0,0 +1,53 @@
+/**
+ * AJV-based JSON Schema validator provider
+ */
+import Ajv from 'ajv';
+import type { JsonSchemaType, JsonSchemaValidator, jsonSchemaValidator } from './types.js';
+/**
+ * @example
+ * ```typescript
+ * // Use with default AJV instance (recommended)
+ * import { AjvJsonSchemaValidator } from '@modelcontextprotocol/sdk/validation/ajv';
+ * const validator = new AjvJsonSchemaValidator();
+ *
+ * // Use with custom AJV instance
+ * import { Ajv } from 'ajv';
+ * const ajv = new Ajv({ strict: true, allErrors: true });
+ * const validator = new AjvJsonSchemaValidator(ajv);
+ * ```
+ */
+export declare class AjvJsonSchemaValidator implements jsonSchemaValidator {
+    private _ajv;
+    /**
+     * Create an AJV validator
+     *
+     * @param ajv - Optional pre-configured AJV instance. If not provided, a default instance will be created.
+     *
+     * @example
+     * ```typescript
+     * // Use default configuration (recommended for most cases)
+     * import { AjvJsonSchemaValidator } from '@modelcontextprotocol/sdk/validation/ajv';
+     * const validator = new AjvJsonSchemaValidator();
+     *
+     * // Or provide custom AJV instance for advanced configuration
+     * import { Ajv } from 'ajv';
+     * import addFormats from 'ajv-formats';
+     *
+     * const ajv = new Ajv({ validateFormats: true });
+     * addFormats(ajv);
+     * const validator = new AjvJsonSchemaValidator(ajv);
+     * ```
+     */
+    constructor(ajv?: Ajv);
+    /**
+     * Create a validator for the given JSON Schema
+     *
+     * The validator is compiled once and can be reused multiple times.
+     * If the schema has an $id, it will be cached by AJV automatically.
+     *
+     * @param schema - Standard JSON Schema object
+     * @returns A validator function that validates input data
+     */
+    getValidator<T>(schema: JsonSchemaType): JsonSchemaValidator<T>;
+}
+//# sourceMappingURL=ajv-provider.d.ts.map