fix(deps): Update outdated dependencies

[oliverdougherC]

Changes

Frontend

• Updated Next.js: 15.5.4 → 15.5.12
• Refined package.json formatting

Server

• body-parser: 2.2.0 → 2.2.2
• debug: ^4.4.0 → ^4.4.3
• diff: 4.0.2 → 4.0.4
• iconv-lite: 0.6.3 → 0.7.2
• qs: 6.14.0 → 6.15.0
• raw-body: 3.0.0 → 3.0.1
• type-is: 2.0.0 → 2.0.1

All changes from
pm audit fix --force\ to resolve dependency vulnerabilities.

Test Results

• Frontend build: ✅ Passed
• Server build: ✅ Passed
• Dependency audits: ✅ Passed

References

• [[Encoding Database - Deep Dive]]