simplify environment var with same format UPPERCASE and UNDERSCORE

[hungran]

Closes:

This enhance that all argument can be treat as environment variable with standard format from viper https://github.com/spf13/viper/blob/master/viper.go#L1400-L1403

eg: given argument flag dynamic-toolsets can use as GITHUB_DYNAMIC_TOOLSETS

[Copilot]

Pull Request Overview

Enhance Viper configuration to allow flag names with hyphens to be consumed as environment variables by replacing hyphens with underscores.

• Configure Viper to replace - with _ in env var keys.
• Call viper.SetEnvKeyReplacer before viper.AutomaticEnv().

Comments suppressed due to low confidence (1)

cmd/github-mcp-server/main.go:96

• Consider adding a unit test for initConfig to verify that environment variables with hyphens (e.g., 'dynamic-toolsets') are correctly mapped to underscore format (e.g., 'GITHUB_DYNAMIC_TOOLSETS').

	viper.SetEnvKeyReplacer(strings.NewReplacer("-", "_"))

[JoannaaKL]

Hey @hungran, thank you for your contribution! We recently added a normalisation function that does what you're looking for link. :)

[hungran]

Hey @hungran, thank you for your contribution! We recently added a normalisation function that does what you're looking for link. :)
@JoannaaKL
cool ;) close it