feat: add patch for Google Vertex AI and enhance private key handling

- Introduced a patch for the @ai-sdk/google-vertex package to improve URL handling based on region.
- Added a new utility function to format private keys, ensuring correct PEM structure and validation.
- Updated the ProviderConfigBuilder to utilize the new private key formatting function for Google credentials.
- Created a pnpm workspace configuration to manage patched dependencies effectively.

packages/aiCore/patches/@ai-sdk__google-vertex.patch

@@ -0,0 +1,26 @@
+diff --git a/edge/dist/index.js b/edge/dist/index.js
+index 87cb4e77c6e02c9cc16082f47d9a80878bea1006..8061d52940bfef4f4815051fd09bb700cf0034c7 100644
+--- a/edge/dist/index.js
++++ b/edge/dist/index.js
+@@ -248,7 +248,7 @@ function createVertex(options = {}) {
+     var _a;
+     const region = loadVertexLocation();
+     const project = loadVertexProject();
+-    return (_a = (0, import_provider_utils4.withoutTrailingSlash)(options.baseURL)) != null ? _a : `https://${region}-aiplatform.googleapis.com/v1/projects/${project}/locations/${region}/publishers/google`;
++    return (_a = (0, import_provider_utils4.withoutTrailingSlash)(options.baseURL)) != null ? _a : region === "global" ? `https://aiplatform.googleapis.com/v1/projects/${project}/locations/global/publishers/google` : `https://${region}-aiplatform.googleapis.com/v1/projects/${project}/locations/${region}/publishers/google`;
+   };
+   const createConfig = (name) => {
+     var _a;
+diff --git a/edge/dist/index.mjs b/edge/dist/index.mjs
+index bd4ed39abe78fae60673607ab46241cc29dfa0a2..2e6f36d3668635d93b17660eda18f89972b4ccfd 100644
+--- a/edge/dist/index.mjs
++++ b/edge/dist/index.mjs
+@@ -238,7 +238,7 @@ function createVertex(options = {}) {
+     var _a;
+     const region = loadVertexLocation();
+     const project = loadVertexProject();
+-    return (_a = withoutTrailingSlash(options.baseURL)) != null ? _a : `https://${region}-aiplatform.googleapis.com/v1/projects/${project}/locations/${region}/publishers/google`;
++    return (_a = withoutTrailingSlash(options.baseURL)) != null ? _a : region === "global" ? `https://aiplatform.googleapis.com/v1/projects/${project}/locations/global/publishers/google` : `https://${region}-aiplatform.googleapis.com/v1/projects/${project}/locations/${region}/publishers/google`;
+   };
+   const createConfig = (name) => {
+     var _a;

packages/aiCore/pnpm-lock.yaml

@@ -4,6 +4,11 @@ settings:
   autoInstallPeers: true
   excludeLinksFromLockfile: false
 
+patchedDependencies:
+  '@ai-sdk/google-vertex':
+    hash: b7c4a8a2274e90367ea6efb1e3056a9c6c83cb14329086354e8d20db1139e2f1
+    path: patches/@ai-sdk__google-vertex.patch
+
 importers:
 
   .:
@@ -40,7 +45,7 @@ importers:
         version: 1.2.19(zod@3.25.67)
       '@ai-sdk/google-vertex':
         specifier: ^2.2.24
-        version: 2.2.24(zod@3.25.67)
+        version: 2.2.24(patch_hash=b7c4a8a2274e90367ea6efb1e3056a9c6c83cb14329086354e8d20db1139e2f1)(zod@3.25.67)
       '@ai-sdk/groq':
         specifier: ^1.2.9
         version: 1.2.9(zod@3.25.67)
@@ -612,7 +617,7 @@ snapshots:
       '@ai-sdk/provider-utils': 2.2.8(zod@3.25.67)
       zod: 3.25.67
 
-  '@ai-sdk/google-vertex@2.2.24(zod@3.25.67)':
+  '@ai-sdk/google-vertex@2.2.24(patch_hash=b7c4a8a2274e90367ea6efb1e3056a9c6c83cb14329086354e8d20db1139e2f1)(zod@3.25.67)':
     dependencies:
       '@ai-sdk/anthropic': 1.2.12(zod@3.25.67)
       '@ai-sdk/google': 1.2.19(zod@3.25.67)

packages/aiCore/pnpm-workspace.yaml

@@ -0,0 +1,2 @@
+patchedDependencies:
+  '@ai-sdk/google-vertex': patches/@ai-sdk__google-vertex.patch

packages/aiCore/src/providers/factory.ts

@@ -4,6 +4,7 @@
  */
 
 import type { ProviderId, ProviderSettingsMap } from './registry'
+import { formatPrivateKey } from './utils'
 
 /**
  * 通用配置基础类型，包含所有 Provider 共有的属性
@@ -141,7 +142,10 @@ export class ProviderConfigBuilder<T extends ProviderId = ProviderId> {
   withGoogleCredentials(credentials: any): any {
     if (this.providerId === 'google-vertex') {
       const vertexConfig = this.config as CompleteProviderConfig<'google-vertex'>
-      vertexConfig.googleCredentials = credentials
+      vertexConfig.googleCredentials = {
+        clientEmail: credentials.clientEmail,
+        privateKey: formatPrivateKey(credentials.privateKey)
+      }
     }
     return this
   }

packages/aiCore/src/providers/utils.ts

@@ -0,0 +1,86 @@
+/**
+ * 格式化私钥，确保它包含正确的PEM头部和尾部
+ */
+export function formatPrivateKey(privateKey: string): string {
+  if (!privateKey || typeof privateKey !== 'string') {
+    throw new Error('Private key must be a non-empty string')
+  }
+
+  // 先处理 JSON 字符串中的转义换行符
+  const key = privateKey.replace(/\\n/g, '\n')
+
+  // 检查是否已经是正确格式的 PEM 私钥
+  const hasBeginMarker = key.includes('-----BEGIN PRIVATE KEY-----')
+  const hasEndMarker = key.includes('-----END PRIVATE KEY-----')
+
+  if (hasBeginMarker && hasEndMarker) {
+    // 已经是 PEM 格式，但可能格式不规范，重新格式化
+    return normalizePemFormat(key)
+  }
+
+  // 如果没有完整的 PEM 头尾，尝试重新构建
+  return reconstructPemKey(key)
+}
+
+/**
+ * 标准化 PEM 格式
+ */
+function normalizePemFormat(pemKey: string): string {
+  // 分离头部、内容和尾部
+  const lines = pemKey
+    .split('\n')
+    .map((line) => line.trim())
+    .filter((line) => line.length > 0)
+
+  let keyContent = ''
+  let foundBegin = false
+  let foundEnd = false
+
+  for (const line of lines) {
+    if (line === '-----BEGIN PRIVATE KEY-----') {
+      foundBegin = true
+      continue
+    }
+    if (line === '-----END PRIVATE KEY-----') {
+      foundEnd = true
+      break
+    }
+    if (foundBegin && !foundEnd) {
+      keyContent += line
+    }
+  }
+
+  if (!foundBegin || !foundEnd || !keyContent) {
+    throw new Error('Invalid PEM format: missing BEGIN/END markers or key content')
+  }
+
+  // 重新格式化为 64 字符一行
+  const formattedContent = keyContent.match(/.{1,64}/g)?.join('\n') || keyContent
+
+  return `-----BEGIN PRIVATE KEY-----\n${formattedContent}\n-----END PRIVATE KEY-----`
+}
+
+/**
+ * 重新构建 PEM 私钥
+ */
+function reconstructPemKey(key: string): string {
+  // 移除所有空白字符和可能存在的不完整头尾
+  let cleanKey = key.replace(/\s+/g, '')
+  cleanKey = cleanKey.replace(/-----BEGIN[^-]*-----/g, '')
+  cleanKey = cleanKey.replace(/-----END[^-]*-----/g, '')
+
+  // 确保私钥内容不为空
+  if (!cleanKey) {
+    throw new Error('Private key content is empty after cleaning')
+  }
+
+  // 验证是否是有效的 Base64 字符
+  if (!/^[A-Za-z0-9+/=]+$/.test(cleanKey)) {
+    throw new Error('Private key contains invalid characters (not valid Base64)')
+  }
+
+  // 格式化为 64 字符一行
+  const formattedKey = cleanKey.match(/.{1,64}/g)?.join('\n') || cleanKey
+
+  return `-----BEGIN PRIVATE KEY-----\n${formattedKey}\n-----END PRIVATE KEY-----`
+}

yarn.lock

@@ -241,7 +241,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@ai-sdk/openai-compatible@npm:0.2.14":
+"@ai-sdk/openai-compatible@npm:0.2.14, @ai-sdk/openai-compatible@npm:^0.2.14":
   version: 0.2.14
   resolution: "@ai-sdk/openai-compatible@npm:0.2.14"
   dependencies:
@@ -944,6 +944,7 @@ __metadata:
     "@ai-sdk/groq": "npm:^1.2.9"
     "@ai-sdk/mistral": "npm:^1.2.8"
     "@ai-sdk/openai": "npm:^1.3.22"
+    "@ai-sdk/openai-compatible": "npm:^0.2.14"
     "@ai-sdk/perplexity": "npm:^1.1.9"
     "@ai-sdk/replicate": "npm:^0.2.8"
     "@ai-sdk/togetherai": "npm:^0.2.14"