- query_point: reverse-maps pixel RGB through colormap to recover exact
data values at geographic coordinates
- get_time_series: fetches imagery across evenly-spaced dates for
temporal analysis (up to 12 frames)
- Auto-detect polar stereographic projection (EPSG:3413/3031) for
high-latitude bounding boxes
- Add progress reporting to all HTTP-calling tools
- Add quantitative_snapshot and seasonal_timelapse prompts
- Update README with 3 new conversational examples
- 92 tests passing