feat: add toncoin processing

[Kaladin13]

Closes #204

[github-actions]

To fix the formatting issues:

1. Install necessary dependencies: npm ci
2. Then, run this command:

npx remark -o --silent --silently-ignore payments/toncoin.mdx 

[github-actions]

To fix the formatting issues:

1. Install necessary dependencies: npm ci
2. Then, run this command:

npx remark -o --silent --silently-ignore payments/toncoin.mdx 

[Kaladin13]

/review

[github-actions]

Thanks for the thoughtful update — I left a couple of suggestions in payments/toncoin.mdx; please apply the inline suggestions.

[github-actions]

To fix the formatting issues:

1. Install necessary dependencies: npm ci
2. Then, run this command:

npx remark -o --silent --silently-ignore payments/toncoin.mdx 

[github-actions]

Thanks for the update. In payments/toncoin.mdx, a couple of suggestions to align safety callouts—please apply the inline suggestions.

[github-actions]

To fix the formatting issues:

1. Install necessary dependencies: npm ci
2. Then, run this command:

npx remark -o --silent --silently-ignore payments/toncoin.mdx 

[github-actions]

To fix the formatting issues:

1. Install necessary dependencies: npm ci
2. Then, run this command:

npx remark -o --silent --silently-ignore payments/toncoin.mdx 

[github-actions]

Thanks for the PR—spotted a couple of style issues in payments/toncoin.mdx; please apply the inline suggestions.

[verytactical]

/review

[anton-trunov]

/review

[github-actions]

Thanks for the updates—within payments/toncoin.mdx: I have several suggestions; please apply the inline suggestions.

.