Add the clean PlayStation modes to the panel's mode buttons

Modes 7 (PS5 clean) and 8 (DS4 clean) had no button in the USB mode card --
they were reachable only by assigning them to a back-4 + D-pad chord, which
is not discoverable, so "use the clean modes" was advice nobody could act on
from the panel. PS3 (mode 9) drops WebUSB just the same and has always had a
button, so there was no reason to hide these two.

Adds both buttons (the existing click handler already warns that the panel
disconnects) plus a note on what they are for: games with native PlayStation
support classify the whole USB device and refuse the PS path for a composite,
which is exactly what modes 5/6 are.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

docs/index.html

@@ -177,12 +177,15 @@
         <button data-mode="4" class="modebtn">Switch Pro + gyro</button>
         <button data-mode="5" class="modebtn">PS5 DualSense</button>
         <button data-mode="6" class="modebtn">HID gyro (DS4)</button>
+        <button data-mode="7" class="modebtn">PS5 clean (games)</button>
+        <button data-mode="8" class="modebtn">DS4 clean (games)</button>
         <button data-mode="9" class="modebtn">PS3 (DualShock 3)</button>
         <button data-mode="10" class="modebtn">Original Xbox</button>
         <button data-mode="11" class="modebtn">DirectInput (sims)</button>
         <button data-mode="12" class="modebtn">SInput (SDL native)</button>
       </div>
-      <p class="note">Switching reboots the copycat and re-enumerates USB (~2 s). WebUSB works in every mode, including Steam/Lizard with Steam running (Chrome claims the vendor interface; Steam keeps the HID slots). Switch HORIPAD + WebUSB is PC-only. Original Xbox emulates one Microsoft Controller S and uses the Xbox mapping tab; LB/RB become White/Black. It's for a real Original Xbox console — a PC needs a driver for the original Xbox controller to see it as a gamepad.</p>
+      <p class="note"><b>PS5 clean / DS4 clean</b> are the same pads as PS5 DualSense / HID gyro (DS4), but enumerated as a single non-composite HID interface — no wake-mouse, no WebUSB, no CDC. Games with native PlayStation support (Fortnite, Pragmata, anything on GameInput / Windows.Gaming.Input) classify the whole USB device and refuse the PlayStation path for a composite, so if a game can't see the pad in mode 5/6, use these. They are single-controller by design, and <b>this panel disconnects</b> while one is active: chord back with all four back paddles + A, or set a back-4 + D-pad chord to return.</p>
+      <p class="note">Switching reboots the copycat and re-enumerates USB (~2 s). WebUSB works in every mode EXCEPT the clean PlayStation modes and PS3, including Steam/Lizard with Steam running (Chrome claims the vendor interface; Steam keeps the HID slots). Switch HORIPAD + WebUSB is PC-only. Original Xbox emulates one Microsoft Controller S and uses the Xbox mapping tab; LB/RB become White/Black. It's for a real Original Xbox console — a PC needs a driver for the original Xbox controller to see it as a gamepad.</p>
       <p class="note"><b>DirectInput</b> is for flight/space sims: every analog input is live at once, split over two joysticks (#1 sticks + triggers + 26 buttons, #2 trackpads + gyro). Trackpad axes hold their last position and re-centre on a pad click. <b>SInput</b> is the open SDL-native protocol — SDL3 / Steam Input read sticks, both analog triggers, gyro, both trackpads and battery from it natively, with rumble back from the host.</p>
       <div class="row"><label>Persist last mode</label>
         <button id="persistMode">off</button>