docs: align Capture lifecycle and canonical quickstart

[abrichr]

What changed

• move openadapt-capture from Experimental to Beta in the canonical lifecycle registry
• describe Capture as the canonical native screen, input, timing, window, media, and structural-evidence recorder
• replace the stale multi-command setup with the canonical launcher quickstart
• explain that production qualification belongs to the exact workflow version and deployment
• update the profile validator for the lifecycle and quickstart contracts

Why

The old registry and profile caused search systems to describe the complete Capture package as Experimental. The old quickstart also bypassed the supported launcher path. These statements did not match the released component role or the target product path.

The repository lifecycle label does not replace production readiness. The target product supports production-qualified workflows through exact evidence, verification, and deployment contracts. Capture's custom Chrome extension remains a separate prototype component.

Validation

• python scripts/check_profile.py
• validated canonical product truth and 34 Markdown links
• git diff --check
• branch starts from current origin/main

[abrichr]

Split: the stale-fact half merged, the relabel is held

Reviewed under the rule that no visible maturity label changes until the acceptance evidence exists (one visible change at the end).

Merged as #12 (d60445b), rebased on current main:

• profile/README.md "Start Locally": the published pip install openadapt + four-command openadapt flow ... sequence cannot run as written, because the base launcher resolves openadapt-flow[hosted] and Playwright ships only through the openadapt[browser] extra. Replaced with python -m pip install --upgrade 'openadapt[browser]' + openadapt quickstart.
• scripts/check_profile.py: the canonical-quickstart contract and the refusal of the superseded manual path.

One correction was made while merging: the description said the quickstart "lints". It does not. openadapt_flow.tutorial.run_tutorial stages are record, compile, certify, run under the standard profile with independent effect verification, and receipt. Lint moved to the follow-on guide sentence.

Held on this branch (4f9d62d), now reduced to exactly the visible change so it can ship in one action later:

• REPOSITORY_LIFECYCLE.md, repository-lifecycle.yml, profile/README.md "Native capture" row, and check_profile.py expected lifecycle: openadapt-capture Experimental to Beta.

The current decision is that Capture goes straight from Experimental to Production once its evidence passes, so a Beta step is a holding step. Keep this branch only if that decision changes.

Dropped, not carried onto the held branch:

• the new ## Production Qualification section in profile/README.md and its required-marker contract. It stated "Browser is the available end-to-end reference path" and asserted present-tense production qualification across Desktop, RDP, Citrix, private-network, and regulated workflows. There is no signed acceptance record yet, and feat: gate Production lifecycle on acceptance evidence #11 landed the admission mechanism with every Production membership and admission list empty, so that copy would publish a production claim ahead of its evidence.