docs: repo-wide housekeeping — sync README & docs with the code as shipped

Six parallel audits swept the root docs, docs-site, every per-directory
README, and the packaging docs; every claim below was verified against
the source before editing.

- README: Layout gains the six missing crates (pf-client-core,
  pf-presenter, pf-console-ui, pf-ffvk, pf-driver-proto, punktfunk-tray),
  clients/session, api/ and ci/; Linux/Windows client rows reflect the
  shell + Vulkan-session split and the Vulkan Video -> VAAPI/D3D11VA ->
  software decode chains; the "every client over a C ABI" claim is
  corrected (Rust clients link the core directly); tiered stats overlay
  + console shell noted; Apple row mentions AV1.
- CONTRIBUTING: drop the dead CLAUDE.md link (deliberately untracked);
  point at the README's build/invariants sections. SECURITY: 0.9.0.
- host-cli/pairing: --allow-pairing/--require-pairing are no-op legacy
  names — pairing is required by default, --allow-tofu is the real flag;
  document --data-port and --idle-timeout-ms.
- configuration: document PUNKTFUNK_RECOVER_SESSION_CMD (session-crash
  recovery hook), PUNKTFUNK_MDNS, PUNKTFUNK_DATA_PORT.
- virtual-displays/gnome: GNOME per-client scaling shipped (host-
  persisted) — flip the ❌ to ✅ and describe how it works.
- stats: new "Detail levels" section (Off/Compact/Normal/Detailed +
  per-platform cycle gestures); retire the GTK hand-off note.
- clients/install-client/status/roadmap: decode chains, Windows client
  validation narrowed to HDR-only pending, adaptive bitrate, console
  shell, Apple AV1, Windows host vendor list.
- Sub-READMEs: clients/linux rewritten for the re-architecture; session
  Windows decode rung + d3d11va knob; Windows tiered overlay; Android
  minSdk 28; decky file table; host zerocopy/ path; scripts port
  47992 and steamos-host.md; pf-dualsense source path.
- packaging: canary version bases are tag-derived (<next-minor> via
  pf-version.sh/.ps1), codecs-extra not ffmpeg-full, document the
  pinned offline-Skia tarball + SKIA_BINARIES_URL and vulkan-headers.
- Convert 15 dangling design/*.md links to the punktfunk-planning
  prose convention (those docs live in the private planning repo).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

docs-site/content/docs/roadmap.md

@@ -16,9 +16,9 @@ see [Status & Progress](/docs/status).
 | GameStream host (works with Moonlight) | ✅ |
 | Native `punktfunk/1` protocol | ✅ |
 | Linux host (KWin · GNOME · gamescope · Sway) | ✅ |
-| Windows host (NVIDIA) | ✅ beta |
+| Windows host (NVIDIA · AMD · Intel) | ✅ beta |
 | Apple client (macOS · iOS · iPadOS · tvOS) | ✅ |
-| Linux client (GTK4) | ✅ |
+| Linux client (GTK4 shell + Vulkan session) | ✅ |
 | Android client (phone · TV) | ✅ |
 | Windows client | 🟡 |
 | Web console + pairing | ✅ |
@@ -45,13 +45,14 @@ see [Status & Progress](/docs/status).
 - **Secure by default** — SPAKE2 PIN pairing with pinned reconnects, one-click delegated approval from
   the web console, and mDNS LAN auto-discovery.
 - **Tuned for latency** — concurrent sessions (stream one desktop to several devices at once),
-  mid-stream resolution renegotiation, a cross-machine clock-skew handshake, a 1 Gbps+ data plane, and
-  an in-app network speed test that informs the bitrate picker.
+  mid-stream resolution renegotiation, a cross-machine clock-skew handshake, a 1 Gbps+ data plane,
+  an in-app network speed test that informs the bitrate picker, and **automatic adaptive bitrate**
+  (the encoder re-targets mid-stream when bitrate is set to Automatic).
 
 ## 🟡 In progress
 
-- **Windows client on-glass validation.** The hardware (D3D11VA) decode, HDR present, and GUI are
-  built and ship as a signed MSIX — they just need verification on real GPU hardware.
+- **Windows client on-glass validation.** Hardware decode and the GUI are validated on NVIDIA and
+  Intel; the HDR present path still needs verification on real HDR hardware.
 - **Apple presenter polish.** The lower-latency `VTDecompressionSession` → `CAMetalLayer` stage-2
   path is now the default; HDR brightness and 4:4:4 still need on-glass validation.
 - **Web console parity.** Surfacing the speed test and bitrate picker the apps already have.