fix(validation): add input validation for resource limit fields

[ShadowArcanist]

Changes

• Added strict validation for all input fields on Resource Limits page
• Added error message with custom text to help the user to understand which exact input field is rejecting the input and what input it expects

Issues

• Fixes [Bug]: Invalid CPU Weight input throws error 500 instead of rejecting input #9237

Category

• Bug fix

Preview

Invalid value for CPU Weight Before:

Invalid value for CPU Weight After:

Invalid value for Memory limits Before:

Invalid value for Memory limits After:

AI Assistance

• AI was used (please describe below)

If AI was used:

• Tools used: Jean + Claude (Opus 4.6)
• How extensively: every change on this PR (except the PR description)

Testing

Tried entering valid and invalid values on all input fields on Resource Limits page and Coolify rejects invalid inputs and shows error message with info about which exact input field have invalid data

Contributor Agreement

Important

• I have read and understood the contributor guidelines. If I have failed to follow any guideline, I understand that this PR may be closed without review.
• I have searched existing issues and pull requests (including closed ones) to ensure this isn't a duplicate.
• I have tested all the changes thoroughly with a local development instance of Coolify and I am confident that they will work as expected when a maintainer tests them.

[andrasbacsai]

Thank you for the PR! 💜