Fix authentication in Firebase Studio IDE

[roomote]

This PR fixes authentication issues in Firebase Studio IDE (formerly IDX Google) by implementing enhanced environment detection and improved callback handling.

Changes Made

🔍 Enhanced Environment Detection

• Added Firebase Studio IDE detection in URI handler and authentication services
• Detects environment using app name, remote name, and environment variables
• Provides specific handling for cloud-based IDE environments

🔧 Improved Authentication Flow

• Enhanced WebAuthService with Firebase Studio IDE specific handling
• Added cloud IDE indicator to authentication requests
• Improved error handling and user feedback for cloud environments
• Better logging for debugging authentication issues

📊 Enhanced User Agent

• Updated user agent to include environment information
• Helps server-side debugging and analytics
• Identifies Firebase Studio IDE and other remote environments

🐛 Better Error Handling

• More descriptive error messages for cloud IDE users
• Specific guidance for Firebase Studio IDE authentication issues
• Enhanced logging throughout the authentication flow

Testing

• ✅ Authentication tests pass
• ✅ Activation tests pass
• ✅ Type checking passes
• ✅ Linting passes

Impact

This fix should resolve the issue where users cannot login to app.roocode.com via Firebase Studio IDE because "after confirmation the IDE not detected the confirmation."

Fixes #6369

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Important

Enhances Firebase Studio IDE authentication by improving environment detection, callback handling, and logging in WebAuthService, utils.ts, handleUri.ts, and extension.ts.

• Environment Detection:
  • Added isFirebaseStudioIDE() function to detect Firebase Studio IDE in WebAuthService, utils.ts, handleUri.ts, and extension.ts.
  • Detects environment using app name, remote name, and environment variables.
• Authentication Flow:
  • Enhanced WebAuthService with Firebase Studio IDE specific handling.
  • Added cloud IDE indicator to authentication requests in WebAuthService.
  • Improved error handling and user feedback for cloud environments in WebAuthService and handleUri.ts.
• User Agent:
  • Updated getUserAgent() in utils.ts to include environment information.
• Logging:
  • Added detailed logging for debugging authentication issues in WebAuthService, handleUri.ts, and extension.ts.
• Testing:
  • Authentication and activation tests pass.
  • Type checking and linting pass.

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[roomote]

Code Review Summary

This PR addresses Firebase Studio IDE authentication issues by implementing enhanced environment detection and improved callback handling. While the core functionality looks solid, there are several areas that need attention for code quality and maintainability.

Critical Issues (Must Fix)

1. Code Duplication - DRY Violation
The isFirebaseStudioIDE() function is duplicated across 4 files with identical logic. This violates DRY principles and creates maintenance overhead. Consider extracting this to a shared utility module.

2. Missing Test Coverage
No tests exist for the new Firebase Studio IDE detection functionality, which is a core feature of this PR. This reduces confidence in the implementation and makes future changes risky.

3. Inconsistent Error Handling
Firebase Studio IDE gets special error handling in some places but not others. The error handling pattern should be consistent across all authentication flows.

Important Suggestions (Should Consider)

4. Environment Variable Security
The detection logic checks process.env.FIREBASE_PROJECT_ID and process.env.IDX_WORKSPACE_ID, but these could be set in any environment. Should this be more restrictive to avoid false positives?

5. User Experience
Multiple information messages are shown to users in Firebase Studio IDE environments. Could this become overwhelming? Consider consolidating notifications.

6. Logging Inconsistency
Some files use console.log while others use the injected logger. Should standardize logging approach across all files.

Minor Improvements (Nice to Have)

7. JSDoc Documentation
The isFirebaseStudioIDE() function lacks comprehensive JSDoc explaining the detection criteria and return conditions.

8. Type Safety
Consider creating a TypeScript enum or constant for the cloud IDE types instead of using string literals like "firebase_studio".

9. Performance
The environment detection runs on every authentication operation. Consider caching the result since environment does not change during runtime.

Overall Assessment

The PR successfully addresses the reported issue and the implementation approach is sound. However, the code quality issues, particularly the duplication and missing tests, should be addressed before merging to maintain codebase health.

[ellipsis-dev]

User‐facing messages (e.g. the authentication guidance) are hardcoded. Use the translation (i18n) function instead to support localization.

Suggested change

	"Opening authentication in Firebase Studio IDE. After signing in, the callback should be automatically handled.",
	t("Opening authentication in Firebase Studio IDE. After signing in, the callback should be automatically handled."),

^{This comment was generated because it violated a code review rule: irule_C0ez7Rji6ANcGkkX.}

[ellipsis-dev]

For consistency with naming guidelines, consider using 'Roo Code' instead of 'Roo Code Cloud' when referring to the product in user-facing messages.

^{This comment was generated because it violated a code review rule: irule_VrRKWqywZ2YV2SOE.}

[daniel-lxs]

Closing, the issue is not properly scoped yet