Fastapi api migration fixes

[kaditya97]

What type of PR is this? (check all applicable)

• [x] 🐛 Bug Fix
• [x] 🧑‍💻 Refactor

Describe this PR

• User api's and project post api's

[sonarcloud[bot]]

Quality Gate failed

Failed conditions
C Reliability Rating on New Code (required ≥ A)

See analysis details on SonarCloud

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