forza-trigger: patch dualsense-controller for vibration freq propagation

Live strace on yarn during gameplay revealed the daemon was correctly
calling effect.vibration(freq=35) on slip events, but the OUT report
on the wire showed mode=0x26 (VIBRATION) with byte 31 (param9 =
frequency) = 0. The controller firmware treats freq=0 as "no
oscillation" — trigger sits silent in vibration mode. That's why the
user reported "doesn't react to slipping or anything" even after the
pedal-off early-return fix.

Root cause is in dualsense-controller 0.3.1 itself:
  - WriteStates.__init__ registers individual write-states for trigger
    effect params 1-7 only. params 8/9/10 are not registered.
  - update_out_report copies from per-state values to the OutReport,
    again only params 1-7.
  - The OutReport dataclass DEFINES params 1-10 (with defaults of 0)
    and Usb01OutReport.to_bytes writes all 10 to the wire.
  - effect.vibration() puts frequency in param9 — silently dropped.
  - Same hits effect.machine() (params 8,9,10) and effect.galloping()
    (param10). effect.feedback/weapon/bow only use params 1-7 so
    they happen to work.

Fix is a small upstream-style patch added under patches/dualsense-
controller/ and wired into the dualsense-controller derivation in
hosts/yarn/forza-trigger/python-packages.nix via the patches attr:
in update_out_report, after the param7 assignments, read param8/9/10
directly from the parent TriggerEffect state value (which already
carries them correctly from the call site through _set_value).

Verified post-patch by source-reading the installed library:
  out_report.left_trigger_effect_param9 = self.left_trigger_effect.value.param9
  out_report.right_trigger_effect_param9 = self.right_trigger_effect.value.param9
  (and 4 more for left/right param8/10)

Build-sandbox tests (54/54) pass via the forza-trigger-tests build
gate; full yarn NixOS closure builds clean.

Filing upstream against yesbotics/dualsense-controller-python is the
follow-up; until then this is a local patch.

hosts/yarn/forza-trigger/python-packages.nix

@@ -34,6 +34,17 @@ rec {
       hash = "sha256-yy1MQeRPqaLvoXaAigQd3gPFsFLbwKqrD4mP2zQqcFw=";
     };
 
+
+    # Library bug fix: trigger-effect params 8-10 are never propagated to
+    # the OUT report. effect.vibration() puts the frequency in param9, so
+    # without this patch every vibration call ships frequency=0 to the
+    # controller and the trigger sits silently in vibration mode. The
+    # patch fixes update_out_report to read params 8/9/10 directly off
+    # the parent TriggerEffect state. Confirmed live with strace before
+    # patching: byte 31 (= L2 param9) was 0 every tick during slip events.
+    patches = [
+      ../../../patches/dualsense-controller/0001-propagate-trigger-effect-params-8-10.patch
+    ];
     nativeBuildInputs = [ py.poetry-core ];
 
     # Upstream's pyproject pins pyee ^11 and cffi ^1.15. nixpkgs ships