feat: added OAuth login

[edospadoni]

Reference:

• sso – enable external apps login via Logto (OIDC/SAML) NethServer/my#5

[Copilot]

Pull Request Overview

This PR implements OAuth (specifically OIDC) login functionality for the sun-ui application. It adds comprehensive support for authenticating users through an external OIDC provider (like Logto or My Nethesis) as an alternative to traditional username/password authentication.

Key Changes:

• Added OIDC client-side integration with login button and callback handling
• Implemented secure backend OIDC authentication flow with state validation and token exchange
• Added comprehensive error handling and internationalization support

Reviewed Changes

Copilot reviewed 11 out of 12 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
sun/sun-ui/src/styles/main.css	Added CSS styles for OIDC login UI components including buttons, separators, and responsive design
sun/sun-ui/src/services/login.js	Added OIDC login methods for initiating authentication and fetching provider configuration
sun/sun-ui/src/routes/router.js	Added login callback route handler for processing OIDC authentication responses
sun/sun-ui/src/i18n/locale-it.json	Added Italian translations for OIDC login messages and error states
sun/sun-ui/src/i18n/locale-en.json	Added English translations for OIDC login messages and error states
sun/sun-ui/src/App.vue	Updated login UI to include OIDC authentication option and error handling
sun/sun-api/methods/authentication.go	Implemented complete OIDC authentication backend with secure state management and token exchange
sun/sun-api/main.go	Added OIDC API endpoints to the router configuration
sun/sun-api/configuration/configuration.go	Added OIDC configuration structure for provider settings
go.mod	Added required OIDC and OAuth2 dependencies
deploy/ansible/roles/sun/templates/sun-api-conf.j2	Added OIDC configuration template for deployment

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[Copilot]

Pull Request Overview

Copilot reviewed 11 out of 12 changed files in this pull request and generated 5 comments.

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[Copilot]

Pull Request Overview

Copilot reviewed 11 out of 12 changed files in this pull request and generated 1 comment.

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