feat: Enhance patent search and update research documentation

- Improve patent search service with expanded functionality
- Update PatentSearchPanel UI component
- Add new research_report.md
- Update experimental protocol, literature review, paper outline, and theoretical framework

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/app/config.py

@@ -3,10 +3,11 @@ from typing import Optional
 
 
 class Settings(BaseSettings):
-    ollama_base_url: str = "http://192.168.30.36:11434"
+    ollama_base_url: str = "http://localhost:11435"
     default_model: str = "qwen3:8b"
     openai_api_key: Optional[str] = None
     openai_base_url: Optional[str] = None
+    lens_api_token: Optional[str] = None
 
     class Config:
         env_file = ".env"