[Web UI] Replace any types in ExecutionForm.tsx

[CommitHu502Craft]

Summary

• replace the unsafe any usages in ExecutionForm.tsx with local typed helpers for refs, input props, and synthetic change events
• introduce an ExecutionFormData shape so the form and its caller share a typed contract instead of SetStateAction<any>
• tighten react-hook-form usage in the execution form and memoize the detail page loaders to satisfy hook dependency linting

Testing

• npx tsc -b
• npx eslint src/components/reasoners/ExecutionForm.tsx src/pages/ReasonerDetailPage.tsx

Notes

• npm run lint in control-plane/web/client is still baseline-red on unrelated existing files across the repo; this PR does not add new full-repo lint failures.

Closes #105

[AbirAbbas]

merge conflicts