feat: implement ReasoningAgent and DualBrainAgent with enhanced reasoning capabilities

- Add ReasoningAgent class with configurable step-by-step reasoning
- Add DualBrainAgent class with separate reasoning and conversational models
- Implement ReasoningConfig for configurable reasoning behavior
- Add ReasoningFlow for reasoning flow control and validation
- Integrate existing Chain of Thought (GenerateCOT) infrastructure
- Support confidence scoring and reasoning validation
- Maintain full backward compatibility with existing Agent class
- Add comprehensive test suite to verify functionality

Resolves #968

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-authored-by: Mervin Praison <MervinPraison@users.noreply.github.com>

Author: github-actions[bot]

src/praisonai-agents/praisonaiagents/__init__.py

@@ -28,6 +28,9 @@
 
 from .agent.agent import Agent
 from .agent.image_agent import ImageAgent
+from .agent.reasoning_agent import ReasoningAgent
+from .agent.dual_brain_agent import DualBrainAgent
+from .agent.reasoning import ReasoningConfig, ReasoningFlow, ActionState
 from .agents.agents import PraisonAIAgents
 from .task.task import Task
 from .tools.tools import Tools
@@ -102,6 +105,11 @@ def disable_telemetry():
 __all__ = [
     'Agent',
     'ImageAgent',
+    'ReasoningAgent',
+    'DualBrainAgent',
+    'ReasoningConfig',
+    'ReasoningFlow',
+    'ActionState',
     'PraisonAIAgents',
     'Agents',
     'Tools',

src/praisonai-agents/praisonaiagents/agent/__init__.py

@@ -3,5 +3,22 @@
 from .image_agent import ImageAgent
 from .handoff import Handoff, handoff, handoff_filters, RECOMMENDED_PROMPT_PREFIX, prompt_with_handoff_instructions
 from .router_agent import RouterAgent
+from .reasoning_agent import ReasoningAgent
+from .dual_brain_agent import DualBrainAgent
+from .reasoning import ReasoningConfig, ReasoningFlow, ActionState
 
-__all__ = ['Agent', 'ImageAgent', 'Handoff', 'handoff', 'handoff_filters', 'RECOMMENDED_PROMPT_PREFIX', 'prompt_with_handoff_instructions', 'RouterAgent']
+__all__ = [
+    'Agent', 
+    'ImageAgent', 
+    'Handoff', 
+    'handoff', 
+    'handoff_filters', 
+    'RECOMMENDED_PROMPT_PREFIX', 
+    'prompt_with_handoff_instructions', 
+    'RouterAgent',
+    'ReasoningAgent',
+    'DualBrainAgent',
+    'ReasoningConfig',
+    'ReasoningFlow',
+    'ActionState'
+]