Improve error handling specificity

[Ofido]

Description

Some except Exception blocks in the code could be more specific. Catching specific exceptions makes the code more robust and easier to debug.

Example

        except Exception as e:
            self.logger.error(f"Workflow failed: {e}", exc_info=True)
            return {
                "status": "error",
                "error": str(e),
                "workflow_duration_seconds": asyncio.get_event_loop().time() - workflow_start_time,
            }

Suggested Improvement

Instead of catching the generic Exception, we should catch more specific exceptions, such as ConfigurationError, LLMConnectionError, etc.

        except ConfigurationError as e:
            self.logger.error(f"Configuration failed: {e}", exc_info=True)
            return {
                "status": "error",
                "error": f"Configuration error: {e}",
                "workflow_duration_seconds": asyncio.get_event_loop().time() - workflow_start_time,
            }
        except LLMConnectionError as e:
            self.logger.error(f"LLM connection failed: {e}", exc_info=True)
            return {
                "status": "error",
                "error": f"LLM connection error: {e}",
                "workflow_duration_seconds": asyncio.get_event_loop().time() - workflow_start_time,
            }
        except Exception as e:
            self.logger.error(f"An unexpected error occurred: {e}", exc_info=True)
            return {
                "status": "error",
                "error": f"An unexpected error occurred: {e}",
                "workflow_duration_seconds": asyncio.get_event_loop().time() - workflow_start_time,
            }