[P2] Improve installation, documentation, demo, and discoverability #8

Phase 8 of the v0.5.0 hardening roadmap.

Completed

• README leads with normal user installation after verified PyPI publication;
• editable install is contributor/development guidance;
• 60-second first-success example with expected semantics;
• reproducible end-to-end wildfire task demo;
• demo covers task requirements -> federation -> Item evidence -> asset plan -> volume -> manifest -> replay;
• architecture/task-rule documentation aligned with stabilized API;
• consistent "STAC Scout" evidence/dataset-intelligence positioning.

PR #27 merged the final README/install/demo changes.

Release validation proved a clean Python 3.14 environment can install stac-scout==0.5.0
from PyPI and successfully run the deterministic README first-success path.

Remaining non-blocking discoverability setting

• expand GitHub topics to include:
  • stac
  • earth-observation
  • satellite-imagery
  • python
  • pystac
  • cloud-native-geospatial
  • geospatial-data

Current repository topics already include earth-observation, geospatial, gis, and
remote-sensing.

The connected GitHub API does not expose repository-topic mutation, so this final item requires
the repository UI.

Final verification

GitHub API confirms the repository topics now include:
stac, earth-observation, satellite-imagery, python, pystac,
cloud-native-geospatial, and geospatial-data, alongside the existing geospatial topics.