Clean up dead /login and /signup redirects/checks left over from /signIn and /register rename

[Theerth1]

Description

Resolves ticket number: #362

Explain what your code changes:
Removed three leftover references to the old /login and /signup routes (replaced by /signIn and /register), which were dead code left over from the rename. No behavior change + these paths were already unreachable since AuthenticationProvider redirects logged-out users to /signIn before any of this code runs.

• src/app/page.tsx — removed the redirect("/login") fallback (and now-unused import)
• src/components/NotificationHandler.tsx — removed a dead pathname === "/login" check that never matched
• src/middleware.ts — removed /signup from publicPaths (no page exists there; /register already covers sign-up)

List the steps you took to test your code:

1. Used grep to search for remnants of /login and /signup in src
2. Tried to force /register from URL (redirected to /signIn as expected)
3. Logged in in as a staff account and landed on dashboard
4. Logged in as a partner account and landed on the partner dashboard
5. Generated a real invite via staff account management page, pulled invite token from DB and visited /register?token= while logged out (sign up form loaded and worked correctly)
6. Deactivated the test invite account afterward to cleanup

Checklist

• [✅] The ticket is mentioned above
• [✅] The changes fulfill the success criteria of the ticket
• [✅] The changes were self-reviewed
• [✅] A review was requested

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[ezraexe]

@greptile review

[greptile-apps]

Disclaimer: This comment was AI-generated and is not necessarily completely accurate. Please take code comments with a grain of salt.

Confidence Score: 5/5

[Medium risk] Removes dead authentication route redirects and checks.

The PR appears safe to merge; the removed checks do not serve an existing route or sign-up flow.

What we checked:

• Signed-out visitors see a blank home page: The middleware sends signed-out visitors to /signIn, and the page wrapper also keeps them from seeing the home page.

Summary

This PR removes three checks for routes that no longer exist. The active /signIn and /register routes remain unchanged. No actionable issues were found. Owner checklist: no applicable area needs improvement; the linter was not run during this review. Score: 100/100.

_{Reviews (1) · Last reviewed commit: "Clean up dead /login and /signup redirec..."}