feat: add Claude 3.7 Sonnet model reference to Anthropic schema

Introduce a new model reference for the Claude 3.7 Sonnet variant in the Anthropic schema. This includes its metadata, capabilities, and configuration schema integration.

Author: amondnet

js/plugins/vertexai/src/modelgarden/anthropic.ts

@@ -51,6 +51,22 @@ export const AnthropicConfigSchema = GenerationCommonConfigSchema.extend({
   location: z.string().optional(),
 });
 
+export const claude37Sonnet = modelRef({
+  name: 'vertexai/claude-3-7-sonnet',
+  info: {
+    label: 'Vertex AI Model Garden - Claude 3.7 Sonnet',
+    versions: ['claude-3-7-sonnet@20250219'],
+    supports: {
+      multiturn: true,
+      media: true,
+      tools: true,
+      systemRole: true,
+      output: ['text'],
+    },
+  },
+  configSchema: AnthropicConfigSchema,
+});
+
 export const claude35Haiku = modelRef({
   name: 'vertexai/claude-3-5-haiku',
   info: {
@@ -151,6 +167,7 @@ export const SUPPORTED_ANTHROPIC_MODELS: Record<
   string,
   ModelReference<typeof AnthropicConfigSchema>
 > = {
+  'claude-3-7-sonnet': claude37Sonnet,
   'claude-3-5-sonnet-v2': claude35SonnetV2,
   'claude-3-5-sonnet': claude35Sonnet,
   'claude-3-5-haiku': claude35Haiku,

js/plugins/vertexai/src/modelgarden/index.ts

@@ -67,6 +67,7 @@ export function vertexAIModelGarden(options: PluginOptions): GenkitPlugin {
 }
 
 export {
+  claude37Sonnet,
   claude35Haiku,
   claude35Sonnet,
   claude35SonnetV2,