Re-validate touched form fields on every change, not only on submit

[Jagadeeshftw]

📌 Description

AnchorForm and SettlementForm (src/components/AnchorForm.tsx, src/components/SettlementForm.tsx) validate inline per the README ("missing or invalid fields are flagged next to the input before the request is sent"). If a field's error clears as soon as it becomes non-empty — without re-checking format/range — a user could type a valid amount, get the error cleared, then edit it to an invalid value (e.g. negative) and not see the error return until they hit submit.

🧩 Requirements and context

• Once a field has been touched (blurred or previously shown an error), re-run its validation on every subsequent change, not just "is it non-empty."
• Keep the existing "don't show errors before first interaction" behavior for untouched fields.
• Apply consistently across AnchorForm, SettlementForm, and QuoteForm if it shares the same validation pattern.

🛠️ Suggested execution

• Update the validation-state logic in AnchorForm.tsx/SettlementForm.tsx (and QuoteForm.tsx if applicable) to re-validate touched fields on every onChange.
• Extend the corresponding .test.tsx files with a "valid then invalid" edit sequence per field, asserting the error reappears without requiring a submit attempt.

✅ Acceptance criteria

• A touched field's error reappears immediately if edited back to an invalid value.
• Untouched fields still show no error before first interaction.
• Test coverage for the edit-to-invalid sequence on each affected form.

🔒 Security notes

No new attack surface; server-side validation on the backend remains the actual enforcement boundary.

📋 Guidelines

• Minimum 95% test coverage
• Clear documentation
• Timeframe: 96 hours

[GBOYEE]

Hi — I can take this on. I'd like to take this on (Re-validate touched form fields on every change, not only on). I'll fix it and add a test to lock it down. I'll open a PR referencing this shortly once assigned.

[Binali223]

Hi maintainer, I am a fullstack dev and I would love to work work on this task. I have read through the description and the acceptance criteria. I am confident I can fix this issue

[grantfox-oss]

🦊 GrantFox — @Binali223 has been assigned to this issue as part of the Official Campaign | FWC26 campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #75)
2. Your PR will be reviewed by the AnchorNet-Org maintainers

Good luck! Track your progress on GrantFox.

[grantfox-oss]

🦊 GrantFox — @Binali223 has been assigned to this issue as part of the Official Campaign | FWC26 campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #75)
2. Your PR will be reviewed by the AnchorNet-Org maintainers

Good luck! Track your progress on GrantFox.

[grantfox-oss]

🦊 GrantFox — @GBOYEE has been assigned to this issue as part of the Official Campaign | FWC26 campaign!

Next steps:

1. Open a Pull Request referencing this issue (e.g., Closes #75)
2. Your PR will be reviewed by the AnchorNet-Org maintainers

Good luck! Track your progress on GrantFox.