Feat/auth migration

[locnguyen1986]

Fix redirect
fix project and conversations

[Copilot]

Pull Request Overview

This PR implements authentication migration improvements by fixing redirect URL handling in the Keycloak OAuth flow and adding support for project public IDs in conversations.

Key changes:

• Fixed OAuth redirect URL to be properly stored and retrieved during the authentication callback flow
• Added project_public_id field to conversations across all layers (database, domain, service, handlers, responses)
• Enhanced GetMe endpoint to include a name field with username fallback

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
services/llm-api/migrations/000004_add_project_public_id_to_conversations.up.sql	Adds database column and index for storing project public IDs in conversations
services/llm-api/migrations/000004_add_project_public_id_to_conversations.down.sql	Provides rollback migration to remove project_public_id column
services/llm-api/internal/domain/conversation/conversation.go	Adds ProjectPublicID field to Conversation domain model
services/llm-api/internal/domain/conversation/conversation_service.go	Updates CreateConversationInput to include ProjectPublicID and sets it during conversation creation
services/llm-api/internal/infrastructure/database/dbschema/conversation.go	Adds ProjectPublicID field to database schema and updates conversion methods
services/llm-api/internal/interfaces/httpserver/handlers/conversationhandler/conversation_handler.go	Extracts and passes project public ID when creating conversations
services/llm-api/internal/interfaces/httpserver/responses/conversation/conversation.go	Adds project_id field to API response structure
services/llm-api/internal/interfaces/httpserver/handlers/authhandler/token_handler.go	Adds Name field to GetMe response with username fallback logic
services/llm-api/internal/interfaces/httpserver/handlers/authhandler/keycloak_oauth.go	Fixes redirect URL handling by storing it during login initiation and retrieving it during callback

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[Copilot]

The default redirect URL is hardcoded to a development environment URL (https://chat-dev.jan.ai/auth/keycloak/callback). This should be configurable or retrieved from configuration to support different environments (development, staging, production). Consider adding this as a configuration parameter similar to how h.redirectURI is configured and passed to the handler constructor.

[Copilot]

The default redirect URL is hardcoded to a development environment URL (https://chat-dev.jan.ai/auth/keycloak/callback). This should be configurable or retrieved from configuration to support different environments (development, staging, production). Consider adding this as a configuration parameter similar to how h.redirectURI is configured and passed to the handler constructor.