[Good First Issue] [Testing] Add unit tests for ConversationalGoalPreprocessor

[profrod-ai]

🎯 Description

The ConversationalGoalPreprocessor class needs more comprehensive unit tests for edge cases and error conditions.

🔍 Problem/Motivation

Better test coverage ensures reliability and prevents regressions as the codebase evolves.

✅ Acceptance Criteria

• Add tests for edge cases
• Test error conditions
• Follow existing test patterns
• All tests pass

📋 Step-by-Step Instructions

Making Changes:
6. Look at tests/agents/goal_preprocessor/test_conversational.py
7. Study existing test patterns using DummyLLM
8. Add test cases for empty history, malformed responses, etc.
9. Run: pytest tests/agents/goal_preprocessor/test_conversational.py

📊 Estimated Effort

Time: 45-60 minutes | Difficulty: Beginner | Skills: Python, testing, pytest

[sanket-mundra]

@rodjentic can you assign this to me?