Quote System for Paymenter v1.2.0

• Improved the Quote and cart handling
• Improved the admin-side experience
• Fixed all reported bugs

• Quote totals are now accurate throughout the entire flow (setup fees, options, discounts, and checkout).
• Discounts at checkout were fixed so totals don’t drop unexpectedly due to cart calculation differences.
• Quotes can only be accepted when they’re Sent, preventing accidental acceptance from other statuses.
• Admins can enable optional email verification for quote links (guests confirm the recipient email before viewing), with basic rate limiting for security.
• Added Resend Email in Quote admin, and improved admin feedback when email is disabled or sending fails.
• Admin preview now shows a clear full price breakdown (plan, options, quantity, subtotal, discount, total) in a simplified list layout.
• Quote item editing now locks unit price and setup fees to product/plan pricing to prevent quote vs checkout mismatches.