docs: align native and remote execution truth

[abrichr]

What changed

• makes openadapt-capture >=1.1.0 the canonical native and remote recording
  contract for Windows, macOS, Linux, RDP, and Citrix
• documents the Windows action-time UIA observation handoff through Capture,
  conversion, and compilation, including window-scoped recordings
• keeps RDP and Citrix explicitly external and pixel-only rather than pretending
  local client UIA crosses the remote boundary
• documents the shipped two-phase consequential-actuation lease across the
  backend, substrate, deployment, hosted, qualification, and security-review
  journeys
• aligns Capture and Desktop repository metadata with their current Beta
  product lifecycle
• corrects the deployment guide to distinguish the dedicated Citrix selector
  from RDP

Why

The curated docs still described Capture as a Windows/RDP-only >=0.6 add-on
and omitted the fresh-frame target/identity revalidation now used before
consequential RDP/Citrix input. The implementation and released product had
outgrown that description.

This PR preserves every working capability and the existing bounded evidence.
It does not reinterpret the no-DOM Citrix stand-in as real ICA/HDX evidence.

Merge dependency

The Capture 1.1.1 producer is published. The Windows capture-to-compiler
consumer merged in Flow PR #239 and is awaiting the Flow 1.22.0 release train.
Keep this PR draft until that exact release publishes, then refresh any exact
version references before merge.

Validation

• uv run pytest -q — 76/76 passed
• uv run mkdocs build --strict — passed
• git diff --check

No static copy tests were added.