feat: implement customer registration flow and business hours system

Major changes:
- Add customer registration with email/phone lookup (app/booking/registro)
- Add customers API endpoint (app/api/customers/route)
- Implement business hours for locations (mon-fri 10-7, sat 10-6, sun closed)
- Fix availability function type casting issues
- Add business hours utilities (lib/utils/business-hours.ts)
- Update Location type to include business_hours JSONB
- Add mock payment component for testing
- Remove Supabase auth from booking flow
- Fix /cita redirect path in booking flow

Database migrations:
- Add category column to services table
- Add business_hours JSONB column to locations table
- Fix availability functions with proper type casting
- Update get_detailed_availability to use business_hours

Features:
- Customer lookup by email or phone
- Auto-redirect to registration if customer not found
- Pre-fill customer data if exists
- Business hours per day of week
- Location-specific opening/closing times

components/ui/select.tsx

@@ -20,14 +20,14 @@ const SelectTrigger = React.forwardRef<
   <SelectPrimitive.Trigger
     ref={ref}
     className={cn(
-      "flex h-10 w-full items-center justify-between rounded-md border border-input bg-background px-3 py-2 text-sm ring-offset-background placeholder:text-muted-foreground focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50 [&>span]:line-clamp-1",
+      "select-trigger flex h-10 w-full items-center justify-between rounded-md border px-3 py-2 text-sm ring-offset-background placeholder:text-muted-foreground focus:outline-none focus:ring-2 focus:ring-ring focus:ring-offset-2 disabled:cursor-not-allowed disabled:opacity-50 [&>span]:line-clamp-1",
       className
     )}
     {...props}
   >
     {children}
     <SelectPrimitive.Icon asChild>
-      <ChevronDown className="h-4 w-4 opacity-50" />
+      <ChevronDown className="h-4 w-4 opacity-50" style={{ color: 'var(--charcoal-brown)' }} />
     </SelectPrimitive.Icon>
   </SelectPrimitive.Trigger>
 ))
@@ -46,6 +46,7 @@ const SelectScrollUpButton = React.forwardRef<
       "flex cursor-default items-center justify-center py-1",
       className
     )}
+    style={{ color: 'var(--charcoal-brown)' }}
     {...props}
   >
     <ChevronUp className="h-4 w-4" />
@@ -66,6 +67,7 @@ const SelectScrollDownButton = React.forwardRef<
       "flex cursor-default items-center justify-center py-1",
       className
     )}
+    style={{ color: 'var(--charcoal-brown)' }}
     {...props}
   >
     <ChevronDown className="h-4 w-4" />
@@ -84,7 +86,7 @@ const SelectContent = React.forwardRef<
     <SelectPrimitive.Content
       ref={ref}
       className={cn(
-        "relative z-50 max-h-96 min-w-[8rem] overflow-hidden rounded-md border bg-popover text-popover-foreground shadow-md data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2",
+        "select-content relative z-50 max-h-96 min-w-[8rem] overflow-hidden rounded-md shadow-md data-[state=open]:animate-in data-[state=closed]:animate-out data-[state=closed]:fade-out-0 data-[state=open]:fade-in-0 data-[state=closed]:zoom-out-95 data-[state=open]:zoom-in-95 data-[side=bottom]:slide-in-from-top-2 data-[side=left]:slide-in-from-right-2 data-[side=right]:slide-in-from-left-2 data-[side=top]:slide-in-from-bottom-2",
         position === "popper" &&
           "data-[side=bottom]:translate-y-1 data-[side=left]:-translate-x-1 data-[side=right]:translate-x-1 data-[side=top]:-translate-y-1",
         className
@@ -133,14 +135,14 @@ const SelectItem = React.forwardRef<
   <SelectPrimitive.Item
     ref={ref}
     className={cn(
-      "relative flex w-full cursor-default select-none items-center rounded-sm py-1.5 pl-8 pr-2 text-sm outline-none focus:bg-accent focus:text-accent-foreground data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
+      "select-item relative flex w-full cursor-default select-none items-center rounded-sm py-2 pl-8 pr-2 text-sm outline-none data-[disabled]:pointer-events-none data-[disabled]:opacity-50",
       className
     )}
     {...props}
   >
     <span className="absolute left-2 flex h-3.5 w-3.5 items-center justify-center">
       <SelectPrimitive.ItemIndicator>
-        <Check className="h-4 w-4" />
+        <Check className="h-4 w-4" style={{ color: 'var(--deep-earth)' }} />
       </SelectPrimitive.ItemIndicator>
     </span>
 
@@ -158,7 +160,8 @@ const SelectSeparator = React.forwardRef<
 >(({ className, ...props }, ref) => (
   <SelectPrimitive.Separator
     ref={ref}
-    className={cn("-mx-1 my-1 h-px bg-muted", className)}
+    className={cn("-mx-1 my-1 h-px", className)}
+    style={{ background: 'var(--mocha-taupe)', opacity: 0.3 }}
     {...props}
   />
 ))