Tiago/native prices e2e test

[tilacog]

Description

This PR adds a dedicated E2E test validating the native price forwarding feature introduced in #3988.

Changes

• Add crates/e2e/tests/e2e/native_price.rs test module.

How to test

1. Start PostgreSQL

docker compose up -d db && docker compose up migrations

2. Run the test

just test-e2e local_node_native_price_forwarding

Related Issues

• Original issue: forward native price requests to autopilot #3831
• Adds test coverage for the solution implemented in Autopilot Native Price API #3988

[github-actions]

All contributors have signed the CLA ✍️ ✅
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[tilacog]

I have read the CLA Document and I hereby sign the CLA

[tilacog]

Closing because those tests are not required.