#173- fix hallucination bug

[Cubix33]

Closes #173

📝 Description

This PR resolves the issue where the PDF filler was "hallucinating" repeating values (e.g., repeating the name in every field).

🛠️ Key Changes

• main.py: Restored the use of descriptive_fields when calling the controller. By passing human-readable labels instead of generic PDF widget IDs (like textbox_0_0), the LLM now has the necessary semantic context to extract accurate, distinct values from the transcript.
• llm.py (Loop Fix): Removed the .keys() call in main_loop(). Since the target fields are passed as a list, calling .keys() was causing a runtime crash.

🧪 Quality Check

• Verified that the LLM receives descriptive prompts (e.g., "Employee's name") instead of generic IDs.
• Validated that the final PDF contains unique data for each field rather than repeating the same string.

📸 Evidence

Before Fix (Hallucination):

{
  "textbox_0_0": "John Doe",
  "textbox_0_1": "John Doe",
  "textbox_0_2": "managing director"
}