Validate schemes

[erikdubbelboer]

No description provided.

[Copilot]

Pull Request Overview

This PR adds validation for URI schemes to ensure they conform to the standard format defined in RFC 3986. The validation is performed during URI parsing to prevent acceptance of malformed schemes.

• Implements scheme validation according to RFC 3986 standards
• Adds comprehensive test coverage for both valid and invalid schemes
• Integrates validation into the existing URI parsing flow

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
uri.go	Adds isValidScheme function and integrates scheme validation into the parse method
uri_test.go	Adds test case to verify rejection of invalid schemes and acceptance of relative URIs

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