Issue: Refactor(routing): Fallback to current active routing algorithm

Add connectors from the current active routing algorithm before fallback connectors

Resolution: <think>
PR Context:
- Title: refactor(routing): Add connectors from current active routing algorithm before adding fallback connectors
- Merged: 2025-05-14T18:35:38Z
- Files changed: 1 files
- Commits: 11 commits

Implementation approach:
## Type of Change
<!-- Put an `x` in the boxes that apply -->

- [ ] Bugfix
- [ ] New feature
- [ ] Enhancement
- [x] Refactoring
- [ ] Dependency updates
- [ ] Documentation
- [ ] CI/CD

## Description
<!-- Describe your changes in detail -->
This PR modifies critical paths , specifically the `decide_connector` function and the `route_connector_v1_for_payments` function in the payments confirm flow.
These changes are made corresponding to a use case for Narvar. In case the connect
</think>

To implement this, you'll need to modify:


**Detailed Implementation:**


**Commit 1:** refactor(routing): Add connectors from current active routing algorithm before adding fallback conne
Files to modify:


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