Web UI dashboard for prompt version history

[xmaks82]

Description

Build a simple web dashboard to visualize prompt version history, diffs between versions, and feedback statistics.

Suggested Stack

• FastAPI or Flask backend
• Simple HTML/CSS/JS frontend (no heavy frameworks needed)
• Read from existing YAML prompt versions and JSONL logs

Features

• List all prompt versions with metadata
• Side-by-side diff between any two versions
• Feedback statistics chart (positive/negative over time)
• Session history viewer