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>

scripts/60-punktfunk.rules

@@ -17,3 +17,24 @@ KERNEL=="uhid", SUBSYSTEM=="misc", OPTIONS+="static_node=uhid", GROUP="input", M
 # are root-only by default while the host runs as a user service — grant the `input`
 # group write when vhci_hcd appears (module autoload: modules-load.d/punktfunk.conf).
 ACTION=="add", SUBSYSTEM=="platform", KERNEL=="vhci_hcd.*", RUN+="/bin/sh -c 'chgrp input /sys%p/attach /sys%p/detach && chmod 0660 /sys%p/attach /sys%p/detach'"
+
+# hidraw access for the VIRTUAL pads this host creates. Steam/SDL drive a DualSense's rich
+# feedback (adaptive triggers, lightbar, player LEDs) exclusively over hidraw — the kernel has no
+# evdev API for any of it — and Steam without hidraw demotes a PlayStation pad to a generic evdev
+# device, losing its rumble handling too. hidraw nodes are root-only by default; the distro's
+# steam-devices rules + logind's uaccess ACL cover only the active seat session, so a game
+# launched outside it (a headless/dedicated streaming session) is silently feedback-dead.
+# GROUP="input" makes access follow the same group the host itself already requires.
+# KERNELS matches the HID device name (works for UHID devices, which have no USB parent);
+# the ATTRS pair covers the usbip/gadget Deck, which IS a (virtual) USB device.
+# DualSense (054C:0CE6) / DualSense Edge (054C:0DF2) / DualShock 4 (054C:09CC)
+KERNEL=="hidraw*", KERNELS=="*054C:0CE6*", GROUP="input", MODE="0660", TAG+="uaccess"
+KERNEL=="hidraw*", KERNELS=="*054C:0DF2*", GROUP="input", MODE="0660", TAG+="uaccess"
+KERNEL=="hidraw*", KERNELS=="*054C:09CC*", GROUP="input", MODE="0660", TAG+="uaccess"
+# Switch Pro Controller (057E:2009) — SDL's hidapi driver wants hidraw for rumble/LEDs too
+KERNEL=="hidraw*", KERNELS=="*057E:2009*", GROUP="input", MODE="0660", TAG+="uaccess"
+# Steam Deck (28DE:1205) / classic Steam Controller (28DE:1102), UHID and usbip/gadget forms
+KERNEL=="hidraw*", KERNELS=="*28DE:1205*", GROUP="input", MODE="0660", TAG+="uaccess"
+KERNEL=="hidraw*", KERNELS=="*28DE:1102*", GROUP="input", MODE="0660", TAG+="uaccess"
+KERNEL=="hidraw*", ATTRS{idVendor}=="28de", ATTRS{idProduct}=="1205", GROUP="input", MODE="0660", TAG+="uaccess"
+KERNEL=="hidraw*", ATTRS{idVendor}=="28de", ATTRS{idProduct}=="1102", GROUP="input", MODE="0660", TAG+="uaccess"