Bug-024- System accepts duplicate candidate resumes without showing validation

Title: System accepts duplicate candidate resumes without showing validation

Environment: Staging
Module: Candidates → Resume Upload/ Create jobs

**Steps to Reproduce:**
Upload a candidate resume.
Complete the candidate creation/upload process successfully.
Attempt to upload the same resume again.
Observe the system response.

Expected Result:
The system should detect that the resume has already been uploaded and display an appropriate validation message, such as:

"This candidate resume has already been uploaded."

The duplicate resume should not be accepted.

Actual Result:
The system does not show any duplicate-resume validation and accepts the same candidate resume again.

Impact:
Duplicate candidate records/resumes can be created, which may result in duplicate applicants and inaccurate candidate data.

Attachnment :

https://github.com/user-attachments/assets/cfeb2259-f436-497b-909b-c472d065b2ac