fix: update Next.js to 15.3.6 to address CVE-2025-51605 (RCE vulnerability)

[Copilot]

🎯 Please make sure you are opening this Pull Request against the next branch!

📝 Description

Updates Next.js from 15.3.4 to 15.3.6 to patch the critical RCE vulnerability in the React flight protocol (GHSA-9qr9-h5gf-34mp).

Changes:

• apps/web: next and eslint-config-next → 15.3.6
• apps/docs: next and eslint-config-next → 15.3.6
• Updated lock files

🔗 Related Issue(s)

Closes #276

💡 Motivation and Context

Next.js 15.3.4 is vulnerable to RCE via the React flight protocol. Versions >= 15.3.0-canary.0, < 15.3.6 are affected.

References:

• GHSA-9qr9-h5gf-34mp
• GHSA-fv66-9v8q-g76r

🤖 Use of Artificial Intelligence (AI)

• Did you use any AI tools (such as GitHub Copilot, ChatGPT, etc.) to help develop this PR?
  • No, this PR was developed without the assistance of AI tools.
  • Yes, AI tools assisted in the development of this PR (please specify which ones and how they were used):
    • Tool(s) used: GitHub Copilot
    • Brief description of how AI contributed: Investigated the vulnerability, verified affected versions, and applied the fix
• Was this PR generated entirely by an AI tool (i.e., with minimal human intervention)?
  • No
  • Yes (please provide details): Generated by GitHub Copilot coding agent

🧪 How Has This Been Tested?

• GitHub Advisory Database verification confirmed 15.3.6 has no known vulnerabilities
• Linting passed for both apps
• Type checking passed for both apps

📸 Screenshots (if appropriate)

N/A - dependency update only

🔄 Types of Changes

Check the relevant option(s) below:

• 🐛 Bug fix (non-breaking change which fixes an issue)
• ✨ New feature (non-breaking change which adds functionality)
• ⚠️ Breaking change (fix or feature that would cause existing functionality to change)
• 📚 Documentation update

✅ Checklist

• My code follows the code style of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)
• I have rebased and/or merged on top of the latest next branch

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🙏 Thank you for your contribution!

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• fonts.googleapis.com
  • Triggering command: /usr/local/bin/node node /home/REDACTED/work/Palmr/Palmr/apps/docs/node_modules/.bin/../next/dist/bin/next build (dns block)
  • Triggering command: /usr/local/bin/node node /home/REDACTED/work/Palmr/Palmr/apps/web/node_modules/.bin/../next/dist/bin/next build (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

Original prompt

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This section details on the original issue you should resolve

<issue_title>Critical Security Vulnerability in React Server Components</issue_title>
<issue_description>Update ASAP

https://react2shell.com/
GHSA-fv66-9v8q-g76r
GHSA-9qr9-h5gf-34mp

Actually not sure that this applies but i will leave this issue open until it is checked.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Critical Security Vulnerability in React Server Components #363

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💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.

[sommersdev]

please merge this PR ASAP and publish a new version 🙏

[sommersdev]

saw another process that was crypto mining via palmr container. I am stopping Palmr until a new Version with a newer version gets published, so please @danielalves96, merge this PR