feat(rate): project qualified post-ground spatial targets (#4192)

[d-sorgcodexagent]

Summary

• project only qualified complete-at-rest regional-ground endpoints onto the existing canonical SpatialTarget geometry
• preserve the sole v1 target frame, pass final x/z unchanged, and substitute declared landing-surface elevation exactly once before delegating signed miss/hold calculation
• emit bounded deterministic scalar-ensemble hold, miss-distance, downrange, elevation, and lateral results with exact phase/reason/model/digest provenance
• fail closed with typed nullable evidence for transfer errors, non-settled bounce, cancelled/failed/partial regional execution, non-rest/left-surface termination, missing summaries, censored results, and unsupported aerial-waypoint evaluation

Verification

• original candidate: 23 focused tests and 1,315 broad Rate/flight/ground tests
• combined child after PR feat(rate): add bounded ground-result playback (#4274) #4363: 37 focused target/study/playback tests
• strict MyPy, Ruff check/format, Bandit, manifest validator and tests, documentation, blocking quality, minimum-test, changed-Python, module-size, assertion, placeholder, and diff gates
• playback React source is inherited unchanged from independently verified PR feat(rate): add bounded ground-result playback (#4274) #4363 (754 full-suite and 31 focused tests)

Scope boundary

This is UI-neutral and adds no editor, persistence, inverse-solver/capability execution, aerial trajectory evaluation, compiled runtime, new physics, or geometry. It advances but does not complete #4192, #4273, or #4267.

Refs #4192
Refs #4273
Refs #4267

[dieterolson]

Consolidated into #4410. Closing to reduce CI/CD runner load.