Feat/add.azure.and.other.providers (#607)

* fix: claude-4 not having the right max_tokens

* feat: add bedrock support

* chore: fix package-lock.json

* fix: rename baseUrl to baseURL

* feat: add azure support

* fix: final touches of azure integration

* feat: add google vertex provider

* chore: fix tests and refactor task-manager.test.js

* chore: move task 92 to 94

src/ai-providers/azure.js

@@ -0,0 +1,52 @@
+/**
+ * azure.js
+ * AI provider implementation for Azure OpenAI models using Vercel AI SDK.
+ */
+
+import { createAzure } from '@ai-sdk/azure';
+import { BaseAIProvider } from './base-provider.js';
+
+export class AzureProvider extends BaseAIProvider {
+	constructor() {
+		super();
+		this.name = 'Azure OpenAI';
+	}
+
+	/**
+	 * Validates Azure-specific authentication parameters
+	 * @param {object} params - Parameters to validate
+	 * @throws {Error} If required parameters are missing
+	 */
+	validateAuth(params) {
+		if (!params.apiKey) {
+			throw new Error('Azure API key is required');
+		}
+
+		if (!params.baseURL) {
+			throw new Error(
+				'Azure endpoint URL is required. Set it in .taskmasterconfig global.azureBaseURL or models.[role].baseURL'
+			);
+		}
+	}
+
+	/**
+	 * Creates and returns an Azure OpenAI client instance.
+	 * @param {object} params - Parameters for client initialization
+	 * @param {string} params.apiKey - Azure OpenAI API key
+	 * @param {string} params.baseURL - Azure OpenAI endpoint URL (from .taskmasterconfig global.azureBaseURL or models.[role].baseURL)
+	 * @returns {Function} Azure OpenAI client function
+	 * @throws {Error} If required parameters are missing or initialization fails
+	 */
+	getClient(params) {
+		try {
+			const { apiKey, baseURL } = params;
+
+			return createAzure({
+				apiKey,
+				baseURL
+			});
+		} catch (error) {
+			this.handleError('client initialization', error);
+		}
+	}
+}