fix(security): bump @babel/core→7.29.7, esbuild→0.28.1 (backend)

[andriy-sudo]

Security Vulnerabilities Fixed

Package	Old Version	New Version	GHSA	CVSS	Vanta Alert
@babel/core	7.29.0	7.29.7	GHSA-7ffd-g5r3-g78h	3.7 (LOW)	#16
esbuild	0.27.7	0.28.1	GHSA-67mh-4wv8-2f99	5.3 (MEDIUM)	#8

Both packages are transitive dependencies in backend/. Fixes applied via overrides in backend/package.json.

Changelog impact summary

Package	Old	New	Classification	Key changes
@babel/core	7.29.0	7.29.7	Patch/security	ReDoS fix — no API changes
esbuild	0.27.7	0.28.1	Patch/security	SSRF fix in dev server (--serve mode only) — no API changes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 1e96917d-e0f3-483e-9471-6e7d55997ab5

📥 Commits

Reviewing files that changed from the base of the PR and between aac0aae and e7ccd46.

⛔ Files ignored due to path filters (1)

• backend/package-lock.json is excluded by !**/package-lock.json

📒 Files selected for processing (1)

• backend/package.json

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch andriy/fix-babel-core-esbuild-bigset

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