feat: render Q10 map obstacle markers - #938

Summary

• parse bounded Q10 obstacle and skip-point tables
• expose obstacle positions for current, saved, and clean-history maps
• render calibrated, position-only obstacle markers on Q10 maps
• avoid inferring obstacle types or photo metadata that the packet does not provide

Design against the #933 review priorities

• End-user API: existing live, saved-map and clean-history traits expose typed position-only obstacles; unsupported type/photo metadata is not invented.
• Trait lifecycle: obstacles belong to their received map packet, so no additional pending or cross-session trait state is introduced.
• Parser boundary: the parser produces Q10Obstacle values and the traits only expose defensive list copies; rendering consumes the same typed values.
• Parser internals: obstacle and skip-point counts, coordinates and truncated tails are parsed defensively with explicit bounds and focused tests.

Validation

• 1006 passed, including 92 snapshot tests
• all pre-commit hooks passed
• package build passed

The implementation was also exercised against a physical Roborock Q10 S5 using position-only obstacle data. No private map captures or account data are included.

Related work

• Depends on feat: expose Q10 map archives #937, feat: parse Q10 archived map packets #936
• Tracks the read-only map work in Add Missing Q10 Feature support #767

Latest maintenance validation

• Updated against upstream eac001c; isolated upstream conformance fix tracked in Model conformance test fails on existing frozen Q10RoborockPoint #964 / fix: preserve immutable Q10 points in model conformance checks #965.
• Full suite: 1374 passed, 53 existing xfailed, 92 snapshots passed.
• All pre-commit checks and wheel/sdist builds passed.
• No new physical-device run for this revision.