Configure JWT tokens to expire after 30 seconds

[devin-ai-integration]

Configure JWT tokens to expire after 30 seconds

Summary

Modified the JWT token expiration configuration from 24 hours to 30 seconds in src/backend/config.py. This changes the JWT_ACCESS_TOKEN_EXPIRES setting to use timedelta(seconds=30) instead of timedelta(hours=24).

All existing backend unit tests pass successfully.

Review & Testing Checklist for Human

• Verify 30 seconds is the intended expiration time - This is extremely short and will require users to re-authenticate every 30 seconds. Please confirm this is correct and not a typo (e.g., should it be 30 minutes?)
• Test end-to-end authentication flow - Login to the application, wait 30+ seconds, then attempt an authenticated action. Verify the token expires and the frontend correctly redirects to the login page
• Verify frontend 401 handling - Confirm the axios interceptor in src/frontend/src/utils/api.js properly clears localStorage and redirects when receiving a 401 response
• Consider production implications - If this is intended for production use, evaluate the user experience impact of requiring re-authentication every 30 seconds

Notes

• Backend unit tests (7 JWT-related tests) all pass
• The frontend already has error handling for 401 responses (lines 29-33 in src/frontend/src/utils/api.js)
• This change affects all users of the application

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Link to Devin run: https://app.devin.ai/sessions/099feb22514f472aa31b01fb2bf7a877
Requested by: jia.wu@codeium.com (@JRWu)

[devin-ai-integration]

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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