chore: use new dev url for develop env

[arch1995]

Motivation and Context

• use citadel dev url for local env.

How has this been tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My code follows the code style of this project. (run lint)
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.
• My code requires a db migration.

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Note

Low Risk
Low risk constant change, but it alters where development builds send Citadel requests and may affect local dev workflows that expected a localhost service.

Overview
Updates the BUILD_ENV.DEVELOPMENT default Citadel server endpoint by changing CITADEL_SERVER_URL_DEVELOPMENT from a localhost URL to https://api-develop.web3auth.io/citadel-server.

As a result, code paths (e.g. getDefaultCitadelServerUrl in src/core/auth.ts) will route development-environment Citadel traffic to the hosted develop API instead of a locally running service.

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