What: A new system that predicts and suggests the user's next prompt based on conversation context.
Details:
- Generates 3-8 word suggestions for natural follow-ups (e.g., "run the tests", "now fix the linting errors")
- Only triggers for main REPL thread queries
- Includes telemetry for suggestion display and acceptance tracking
- Evidence: Functions at lines ~409868-409929, telemetry event
tengu_prompt_suggestion_shown