feat(ground-study): adapt qualified regional results (#4273)

[d-sorgcodexagent]

Parent: #4360
Tracks: #4273, #4267

Scope

Adds a UI-neutral adapter from the exact flight-through-regional-ground pipeline into the existing flight-metric and scalar-ensemble/v1 contracts.

• admits canonical total distance, roll distance, final offline, and bounce count only for regional COMPLETE plus ground COMPLETE/REST/summary evidence;
• keeps carry, bounce-air, skid, surface-path, and final-downrange quantities distinct;
• clears stale ground metric inputs and emits typed nullable rows for partial, left-surface, non-settled, cancelled, failed, missing-summary, and transfer-error outcomes;
• preserves exact status, reason, model, and digest evidence without adding physics or a parallel study model.

Evidence

• 7 focused adapter tests and 8 manifest tests
• 1,299 full Rate/flight/ground tests
• strict scoped MyPy
• Ruff check/format
• pinned Bandit 1.8.6
• manifest validator
• documentation governance, blocking-quality, minimum-test, module-size, changed-production/assertion, and diff gates

Boundaries

This is a bounded continuation. It adds no solver/capability invocation, variation UI, wind strategy, persistence, TypeScript/compiled runtime, four-surface parity, or downstream consumer release. Do not close #4273 or #4267 from this PR.

[dieterolson]

Consolidated into #4409. Closing to reduce CI/CD runner load.