fix(host): Linux virtual-pad feedback access — hidraw udev rules, per-pad DS MAC, SET_REPORT acks

Root-cause fixes for "rumble + adaptive triggers never work with Linux hosts"
(the capture code itself was proven good on-hardware — see the new tests):

* 60-punktfunk.rules now grants the `input` group the VIRTUAL pads' hidraw
  nodes (DS/Edge/DS4/Switch/Deck/SC). Steam/SDL drive DualSense adaptive
  triggers, lightbar, and player LEDs exclusively over hidraw — and Steam
  without hidraw demotes a PlayStation pad to a generic evdev device, losing
  its rumble handling too. Coverage no longer depends on the distro's
  steam-devices rules + logind's active-seat uaccess ACL (which a headless/
  dedicated streaming session never gets). Verified live: nodes now come up
  root:input 0660.

* Per-pad MAC in the DualSense (0x09) and DS4 (0x12) pairing feature replies:
  hid-playstation adopts the MAC as the HID uniq and SDL/Steam dedup
  controllers by that serial — identical MACs made a second virtual pad read
  as the first one re-connecting over another transport.

* DualSense/DS4 UHID backends now ack UHID_SET_REPORT (err=0) instead of
  ignoring it, so a SET_REPORT writer no longer blocks on the kernel's 5 s
  timeout.

* New #[ignore] on-box tests play the GAME's role against a real kernel and
  pin the full feedback surface (all green on real hw): DualSense evdev-FF +
  raw hidraw output report (rumble/lightbar/LEDs/both trigger blocks verbatim,
  per-pad uniq), uinput X-Box FF upload→pump→stop-on-erase, and usbip Deck
  0xEB rumble via the controller interface (idle interfaces ACK silently,
  like real hardware).

Windows note: the UMDF driver keeps its own pairing blob copies — the shared-
MAC dedup hazard exists there too and needs a driver-side follow-up.

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

packaging/bazzite/README.md

@@ -207,11 +207,14 @@ ujust add-user-to-input-group      # NOT `usermod` on Bazzite (see the note abov
 sudo udevadm control --reload-rules && sudo udevadm trigger
 ```
 
-The rule contents, for reference:
+The core rule contents, for reference (the full file additionally grants the `input` group access
+to the vhci attach files and to the hidraw nodes of the virtual pads the host creates — Steam/SDL
+need hidraw to send a DualSense's adaptive-trigger/lightbar feedback and reliable rumble):
 
 ```
 KERNEL=="uinput", SUBSYSTEM=="misc", OPTIONS+="static_node=uinput", GROUP="input", MODE="0660", TAG+="uaccess"
 KERNEL=="uhid",   SUBSYSTEM=="misc", OPTIONS+="static_node=uhid",   GROUP="input", MODE="0660", TAG+="uaccess"
+KERNEL=="hidraw*", KERNELS=="*054C:0CE6*", GROUP="input", MODE="0660", TAG+="uaccess"   # + 0DF2/09CC/2009/1205/1102
 ```
 
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