Adding Deep health check for Hyperswitch

Goal is to create a deep health check endpoint which will verify that the Hyperswitch application is up and running and the connections to all the necessary services are healthy
- [x] Failure of health check should emit logs providing evidential data regarding the failure

The deep health will verify the following services 
- [x] #3267
- [x] #3268
- [x] #3269
- [x] #3270
- [x] [Deep health check for Hyperswitch Control Center](https://github.com/juspay/hyperswitch-control-center/issues/374)
<think>
PR Context:
- Title: fix(payment_link): sanitize embedded payment link data
- Merged: 2025-05-29T08:22:03Z
- Files changed: 10 files
- Commits: 7 commits

Implementation approach:
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [x] Bugfix
- [ ] New feature
- [ ] Enhancement
- [ ] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
This PR addresses below issues specifically for payment links
- improper use of innerHTML for API inputs - for rendering transaction details
- improper use of receiving event (isFormReadyForSubmission) from HS SDK

Overall, this PR sanitizes API text based inputs which are rendere
</think>

To implement this, you'll need to modify:


**Detailed Implementation:**


**Commit 1:** fix(payment_link): sanitize embedded payment link data (#7736)
Files to modify:


**crates/hyperswitch_domain_models/src/api.rs**
  Modify existing code

**crates/router/src/configs/settings.rs**
  Add:
    - function: private::default
    - impl: impl Default for PaymentLink

**crates/router/src/core/payment_link.rs**
  Modify existing code

**crates/router/src/core/payment_methods.rs**
  Modify existing code

**crates/router/src/core/payout_link.rs**
  Modify existing code

**crates/router/src/services/api.rs**
  Modify existing code
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