Revert "dev: remove max_tokens from Claude"

This reverts commit 3bce60893e.

src/backend/src/modules/puterai/ClaudeService.js

@@ -251,6 +251,7 @@ class ClaudeService extends BaseService {
 
                 const msg = await this.anthropic.messages.create({
                     model: model ?? this.get_default_model(),
+                    max_tokens: (model === 'claude-3-5-sonnet-20241022' || model === 'claude-3-5-sonnet-20240620') ? 8192 : 4096,
                     temperature: 0,
                     system: PUTER_PROMPT + JSON.stringify(system_prompts),
                     messages: adapted_messages,