feat: Add AI Agent workflow action node (#12650)

https://github.com/user-attachments/assets/8593e488-cb00-4fd2-b903-5ba5766e0254

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packages/twenty-server/src/engine/core-modules/twenty-config/config-variables.ts

@@ -984,6 +984,14 @@ export class ConfigVariables {
   })
   OPENAI_API_KEY: string;
 
+  @ConfigVariablesMetadata({
+    group: ConfigVariablesGroup.LLM,
+    isSensitive: true,
+    description: 'API key for Anthropic integration',
+    type: ConfigVariableType.STRING,
+  })
+  ANTHROPIC_API_KEY: string;
+
   @ConfigVariablesMetadata({
     group: ConfigVariablesGroup.ServerConfig,
     description: 'Enable or disable multi-workspace support',