feat(azure): added azure anthropic, added backwards compat support for chat completions API, added opus 4.6

Author: waleedlatif1

apps/sim/app/llms-full.txt/route.ts

@@ -56,7 +56,7 @@ An execution is a single run of a workflow. It includes:
 ### LLM Orchestration
 Sim supports all major LLM providers:
 - OpenAI (GPT-5.2, GPT-5.1, GPT-5, GPT-4o, GPT-4.1)
-- Anthropic (Claude Opus 4.5, Claude Opus 4.1, Claude Sonnet 4.5, Claude Haiku 4.5)
+- Anthropic (Claude Opus 4.6, Claude Opus 4.5, Claude Sonnet 4.5, Claude Haiku 4.5)
 - Google (Gemini Pro 3, Gemini Pro 3 Preview, Gemini 2.5 Pro, Gemini 2.5 Flash)
 - Mistral (Mistral Large, Mistral Medium)
 - xAI (Grok)

apps/sim/blocks/blocks/agent.ts

@@ -763,7 +763,10 @@ Example 3 (Array Input):
     maxTokens: { type: 'number', description: 'Maximum number of tokens in the response' },
     reasoningEffort: { type: 'string', description: 'Reasoning effort level for GPT-5 models' },
     verbosity: { type: 'string', description: 'Verbosity level for GPT-5 models' },
-    thinkingLevel: { type: 'string', description: 'Thinking level for Gemini 3 models' },
+    thinkingLevel: {
+      type: 'string',
+      description: 'Thinking level for models with extended thinking (Anthropic Claude, Gemini 3)',
+    },
     tools: { type: 'json', description: 'Available tools configuration' },
   },
   outputs: {