docs: add 47-day cert lifespan motivation, update roadmap, cross-validate all docs

README: lead with CA/Browser Forum Ballot SC-081v3 (47-day certs by 2029)
and certctl's end-to-end automation positioning. Update architecture
diagram and target lists to include Apache/HAProxy. Update roadmap
with new M15 (Revocation Infrastructure), renumbered M16-M18, and
V3.1 cert-manager/IAM Roles Anywhere additions.

concepts.md: rewrite "Why Do Certificates Expire?" with shrinking
lifespan timeline and automation imperative.

quickstart.md: add 47-day framing in intro.

architecture.md: add Apache/HAProxy to system diagram, target connector
diagram, deployment section, and ER diagram (agent metadata columns).
Update planned targets list for V3.1. Fix test count (230+).

connectors.md: fix notifier planned version reference (V2 not V2.1).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
shankar0123
2026-03-20 19:28:02 -04:00
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# Quick Start Guide
Get certctl running locally and managing certificates in under 5 minutes.
Get certctl running locally and managing certificates in under 5 minutes. With TLS certificate lifespans dropping to 47 days by 2029, automated lifecycle management isn't optional — it's infrastructure. This guide gets you hands-on with certctl's automation loop: tracking, renewing, and deploying certificates without manual intervention.
New to certificates? Read the [Concepts Guide](concepts.md) first — it explains TLS, CAs, and private keys in plain language.