Test current user's Google Earth Engine credentials.

Authentication: JWT token required Authorization: Any authenticated user

Prerequisites:

• User must have GEE credentials configured (OAuth or service account)

Response Schema (Success):

{
  "message": "GEE credentials are valid and working"
}

What This Tests:

• Initializes Google Earth Engine with user's credentials
• Verifies credentials are not expired
• Confirms GEE API access is working
• Validates credential format and permissions

Typical Workflow:

1. Check if credentials exist using GET /user/me/gee-credentials
2. Test credentials validity using this endpoint
3. If credentials are valid, proceed with GEE analysis
4. If credentials are invalid/expired, refresh or update credentials

Error Responses:

• 400 Bad Request: GEE credentials not configured or invalid/expired
• 401 Unauthorized: JWT token required or invalid
• 404 Not Found: User not found
• 500 Internal Server Error: Failed to test credentials