refactor: unify ColorPicker — remove native input, fix scroll closing

- Remove native <input type="color">, eyedropper button, colorInputRef,
  isTelegram check and isInTelegramWebApp import from ColorPicker
- Remove scroll event listener so picker only closes on click/tap outside
- Replace native color input in AdminWheel InlinePrizeForm with ColorPicker

src/components/ColorPicker.tsx

@@ -1,6 +1,5 @@
-import { useState, useRef, useEffect, useMemo, useCallback } from 'react';
+import { useState, useRef, useEffect, useCallback } from 'react';
 import { createPortal } from 'react-dom';
-import { isInTelegramWebApp } from '@/hooks/useTelegramSDK';
 
 interface ColorPickerProps {
   value: string;
@@ -111,9 +110,6 @@ export function ColorPicker({ value, onChange, label, description, disabled }: C
 
   const buttonRef = useRef<HTMLButtonElement>(null);
   const pickerRef = useRef<HTMLDivElement>(null);
-  const colorInputRef = useRef<HTMLInputElement>(null);
-
-  const isTelegram = useMemo(() => isInTelegramWebApp(), []);
 
   // Sync with external value
   useEffect(() => {
@@ -177,18 +173,15 @@ export function ColorPicker({ value, onChange, label, description, disabled }: C
       }
     };
 
-    const handleScroll = () => handleClose();
     const handleResize = () => updatePosition();
 
     document.addEventListener('mousedown', handleClickOutside);
     document.addEventListener('touchstart', handleClickOutside as EventListener);
-    window.addEventListener('scroll', handleScroll, true);
     window.addEventListener('resize', handleResize);
 
     return () => {
       document.removeEventListener('mousedown', handleClickOutside);
       document.removeEventListener('touchstart', handleClickOutside as EventListener);
-      window.removeEventListener('scroll', handleScroll, true);
       window.removeEventListener('resize', handleResize);
     };
   }, [isOpen, handleClose, updatePosition]);
@@ -229,18 +222,6 @@ export function ColorPicker({ value, onChange, label, description, disabled }: C
     [hsl, updateColorFromHsl],
   );
 
-  // Handle native color input
-  const handleColorInputChange = useCallback(
-    (e: React.ChangeEvent<HTMLInputElement>) => {
-      const newColor = e.target.value;
-      setLocalValue(newColor);
-      const rgb = hexToRgb(newColor);
-      setHsl(rgbToHsl(rgb.r, rgb.g, rgb.b));
-      onChange(newColor);
-    },
-    [onChange],
-  );
-
   // Handle hex input
   const handleHexInputChange = useCallback(
     (e: React.ChangeEvent<HTMLInputElement>) => {
@@ -409,41 +390,6 @@ export function ColorPicker({ value, onChange, label, description, disabled }: C
           placeholder="#000000"
           maxLength={7}
         />
-
-        {/* Native color picker button (hidden in Telegram) */}
-        {!isTelegram && (
-          <>
-            <input
-              ref={colorInputRef}
-              type="color"
-              value={localValue || '#000000'}
-              onChange={handleColorInputChange}
-              disabled={disabled}
-              className="sr-only"
-            />
-            <button
-              type="button"
-              onClick={() => colorInputRef.current?.click()}
-              disabled={disabled}
-              className="flex h-10 w-10 flex-shrink-0 items-center justify-center rounded-xl border border-dark-700 bg-dark-800 text-dark-400 transition-colors hover:bg-dark-700 hover:text-dark-200 disabled:opacity-50"
-              title="System color picker"
-            >
-              <svg
-                className="h-5 w-5"
-                fill="none"
-                viewBox="0 0 24 24"
-                stroke="currentColor"
-                strokeWidth={1.5}
-              >
-                <path
-                  strokeLinecap="round"
-                  strokeLinejoin="round"
-                  d="M4.098 19.902a3.75 3.75 0 005.304 0l6.401-6.402M6.75 21A3.75 3.75 0 013 17.25V4.125C3 3.504 3.504 3 4.125 3h5.25c.621 0 1.125.504 1.125 1.125v4.072M6.75 21a3.75 3.75 0 003.75-3.75V8.197M6.75 21h13.125c.621 0 1.125-.504 1.125-1.125v-5.25c0-.621-.504-1.125-1.125-1.125h-4.072M10.5 8.197l2.88-2.88c.438-.439 1.15-.439 1.59 0l3.712 3.713c.44.44.44 1.152 0 1.59l-2.879 2.88M6.75 17.25h.008v.008H6.75v-.008z"
-                />
-              </svg>
-            </button>
-          </>
-        )}
       </div>
 
       {/* Render picker in portal */}

src/pages/AdminWheel.tsx

@@ -23,6 +23,7 @@ import { CSS } from '@dnd-kit/utilities';
 import { adminWheelApi, type WheelPrizeAdmin, type CreateWheelPrizeData } from '../api/wheel';
 import { useDestructiveConfirm } from '@/platform';
 import FortuneWheel from '../components/wheel/FortuneWheel';
+import { ColorPicker } from '@/components/ColorPicker';
 import { useBackButton } from '../platform/hooks/useBackButton';
 import { usePlatform } from '../platform/hooks/usePlatform';
 
@@ -1146,26 +1147,11 @@ function InlinePrizeForm({
         </div>
 
         {/* Color */}
-        <div>
-          <label className="mb-1 block text-sm font-medium text-dark-300">
-            {t('admin.wheel.prizes.fields.color')}
-          </label>
-          <div className="flex gap-2">
-            <input
-              type="color"
-              value={formData.color}
-              onChange={(e) => setFormData({ ...formData, color: e.target.value })}
-              className="h-10 w-12 cursor-pointer rounded"
-            />
-            <input
-              type="text"
-              value={formData.color}
-              onChange={(e) => setFormData({ ...formData, color: e.target.value })}
-              className="input flex-1"
-              pattern="^#[0-9A-Fa-f]{6}$"
-            />
-          </div>
-        </div>
+        <ColorPicker
+          label={t('admin.wheel.prizes.fields.color')}
+          value={formData.color}
+          onChange={(color) => setFormData({ ...formData, color })}
+        />
       </div>
 
       {/* Active toggle */}