migrate from remix to react-router 7 and update everything

[727021]

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Name	Status	Preview	Updated (UTC)
unquestable	✅ Ready (Inspect)	Visit Preview	Jul 19, 2025 10:10pm

[Copilot]

Pull Request Overview

This PR migrates the application from Remix to React Router 7, updating all dependencies and changing form handling from remix-validated-form to @rvf/react-router. The migration modernizes the codebase with new routing patterns, updated dependencies, and improved form validation.

Key Changes:

• Complete migration from Remix to React Router 7 framework
• Form validation library change from remix-validated-form to @rvf/react-router
• Tailwind CSS upgrade to v4 with new plugin system and CSS structure

Reviewed Changes

Copilot reviewed 70 out of 73 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
vite.config.ts	Updated build configuration for React Router
package.json	Dependency updates for React Router 7 ecosystem
app/routes/*.tsx	Route components updated for new framework
app/components/*.tsx	Form components migrated to new validation library
tailwind.css	Restructured for Tailwind v4 plugin system

Comments suppressed due to low confidence (2)

app/components/BuyItemCard/index.tsx:127

• The formId prop is being passed but not defined in scope. This should be removed as the form prop is handled by the FormApi.

                  {b.cost} CR - {b.name} ({'I'.repeat(b.tier)})

app/components/RebelClassManager/index.tsx:128

• Invalid CSS class cursor-default! - the exclamation mark should not have a space. It should be cursor-default!.

              className="label cursor-default! gap-2 flex py-1"