add support for claude 4.5 opus in cua agent (#241)

* add support for claude 4.5 opus in cua agent

* changeset

Author: tkattkat

.changeset/vague-steel-chamois.md

@@ -0,0 +1,5 @@
+---
+"stagehand": patch
+---
+
+add support for claude 4.5 opus in cua agent

stagehand/agent/agent.py

@@ -23,6 +23,7 @@
     "claude-haiku-4-5-20251001": AnthropicCUAClient,
     "claude-sonnet-4-20250514": AnthropicCUAClient,
     "claude-sonnet-4-5-20250929": AnthropicCUAClient,
+    "claude-opus-4-5-20251101": AnthropicCUAClient,
     "gemini-2.5-computer-use-preview-10-2025": GoogleCUAClient,
 }
 MODEL_TO_PROVIDER_MAP: dict[str, AgentProvider] = {
@@ -32,6 +33,7 @@
     "claude-haiku-4-5-20251001": AgentProvider.ANTHROPIC,
     "claude-sonnet-4-20250514": AgentProvider.ANTHROPIC,
     "claude-sonnet-4-5-20250929": AgentProvider.ANTHROPIC,
+    "claude-opus-4-5-20251101": AgentProvider.ANTHROPIC,
     "gemini-2.5-computer-use-preview-10-2025": AgentProvider.GOOGLE,
     # Add more mappings as needed
 }