feat(router): Better UI payment link and order details product image and merchant config support

[sahkal]

Type of Change

• Bugfix
• New feature
• Enhancement
• Refactoring
• Dependency updates
• Documentation
• CI/CD

Description

Added better UI with animation in payment link along with orderDetails to support product_img_link param.
It also adds, new params in merchant Account to configure payment link styles

Additional Changes

• This PR modifies the API contract
• This PR modifies the database schema
• This PR modifies application configuration/environment variables

"order_details":[{ "product_name":"Tea", "quantity":1, "amount":10, "product_img_link":"https://static-00.iconduck.com/assets.00/clock-small-icon-2048x2048-srddipq8.png" }

`pub struct OrderDetailsWithAmount {
/// Name of the product that is being purchased
#[schema(max_length = 255, example = "shirt")]
pub product_name: String,
/// The quantity of the product to be purchased
#[schema(example = 1)]
pub quantity: u16,
/// the amount per quantity of product
pub amount: i64,
/// The image URL of the product
pub product_img_link: Option<String>,
}`

"payment_link_metadata": { "merchant_logo": "https://i.pinimg.com/736x/4d/83/5c/4d835ca8aafbbb15f84d07d926fda473.jpg", "color_scheme":{ "primary_color": "#34ebeb", "primary_accent_color": null, "secondary_color": null } }

pub struct PaymentLinkMetadata { pub merchant_logo: Option<String>, pub color_scheme: Option<PaymentLinkColorSchema>, }

pub struct PaymentLinkColorSchema { pub primary_color: Option<String>, pub primary_accent_color: Option<String>, pub secondary_color: Option<String>, }

Motivation and Context

How did you test it?

Checklist

• I formatted the code cargo +nightly fmt --all
• I addressed lints thrown by cargo clippy
• I reviewed the submitted code
• I added unit tests for my changes where possible
• I added a CHANGELOG entry if applicable