fix: Correct business hours showing only 22:00-23:00 slots

- Created migration to fix ALL locations with incorrect business hours
- Added debug endpoint to check business hours
- Migration updates locations with 22:00/23:00 times to correct 10:00-19:00

This resolves the booking availability showing wrong time slots.

app/api/debug/business-hours/route.ts

@@ -0,0 +1,32 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { supabaseAdmin } from '@/lib/supabase/admin'
+
+/**
+ * @description Get business hours for all locations (debug endpoint)
+ */
+export async function GET(request: NextRequest) {
+  try {
+    const { data: locations, error } = await supabaseAdmin
+      .from('locations')
+      .select('id, name, timezone, business_hours')
+
+    if (error) {
+      console.error('Error fetching locations:', error)
+      return NextResponse.json(
+        { error: error.message },
+        { status: 500 }
+      )
+    }
+
+    return NextResponse.json({
+      success: true,
+      locations
+    })
+  } catch (error) {
+    console.error('Business hours GET error:', error)
+    return NextResponse.json(
+      { error: 'Internal server error' },
+      { status: 500 }
+    )
+  }
+}