Resolve merge conflicts and update axios to fix DoS vulnerabilities#647

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Copilot wants to merge 4 commits intocourseMentorsfrom

copilot/sub-pr-567

Commits on Feb 19, 2026

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Commits on Feb 20, 2026

Merge master into copilot/sub-pr-567 - resolve conflicts for CourseMentor model

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DedSec256
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Fix build errors after merge: update Course model and fix CoursesService

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DedSec256
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Security: Update axios from 0.30.2 to 1.13.5 to fix DoS vulnerabilities

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DedSec256
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