docs: update README + docs site for public readiness

Refresh the README and documentation for public visitors:

- README: public-facing rewrite with accurate status for all four native
  clients (macOS, Linux, Windows, Android) and the Windows host.
- docs site: fix stale client status (Android is a full client, not a
  scaffold; Windows client is stage-1 complete + signed MSIX), add the
  missing Android client section, correct "which client" guidance.
- Windows host: corrected from "deferred/scoped" to implemented & shipping
  (NVIDIA-only, x64-only) across windows-host, roadmap, status,
  requirements, running-as-a-service, and the README.
- Remove internal infrastructure from public docs (box names, private IPs,
  SSH/token commands, deploy topology); rewrite status.md as a public
  project-status page; sanitize ci.md and implementation-plan.md.
- Update clients/android and clients/apple READMEs to current state.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docs-site/content/docs/quickstart.md

@@ -31,10 +31,11 @@ network, so clients can find it by name. Leave it running. (To start it automati
 
 ## 3. Connect and pair a client
 
-On the device you want to stream to:
+On the device you want to stream to, use a [native punktfunk client](/docs/clients) for the lowest
+latency, or any Moonlight client:
 
-- **Apple (Mac, iPhone, iPad, Apple TV):** open the punktfunk app — your host appears under *On this
-  network*. Tap it, and when prompted, **pair**.
+- **Native client (Apple, Linux, Windows, Android):** open the punktfunk app — your host appears in
+  the list of hosts found on your network. Select it, and when prompted, **pair**.
 - **Anything with Moonlight:** add the host (it should be discovered automatically), then pair.
 
 To pair, the host needs to show a PIN. Arm pairing from the host's web console — the host displays a