feat(auth): style sign-in and sign-up pages to match dark industrial neon-cyan design system

[Vaishnavi10706]

Summary

Styles the /sign-in and /sign-up pages to align with OPSCORD’s dark industrial neon-cyan design system and landing page aesthetic.

Changes

• apps/web/app/sign-in/page.tsx
• apps/web/app/sign-up/page.tsx

What was changed

• Replaced plain blue background glows with neon cyan (#50E3C2) radial gradients
• Added a subtle 40px grid overlay in cyan (matching the landing page's industrial texture)
• Card border updated to cyan-tinted (rgba(80,227,194,0.18)) with a soft cyan box-shadow
• Added a cyan gradient accent line at the top of each card
• Labels converted to monospace uppercase cyan (// AUTHENTICATE, // EARLY ACCESS) following the existing section-label pattern
• Input borders are now cyan-tinted with a cyan focus ring on focus/hover for visible accessibility
• Footer links (Sign up → / Sign in →) use var(--cyan) accent color
• Added an or divider between the CTA button and the footer link
• Added a trust tagline: Secured · SOC2 Ready · Zero-trust in monospace
• Subtitle copy updated to match OPSCORD's DevOps tone

What was NOT changed

• No routing, authentication logic, or API calls modified
• No new packages installed
• No other files touched
• All form fields, placeholders, types, and href targets preserved exactly

Before

After

Changes Made

• Improved auth page styling
• Added OPSCORD branding consistency
• Enhanced responsiveness
• Added industrial neon-cyan aesthetic

Closes #23

[vercel]

@Vaishnavi10706 is attempting to deploy a commit to the xoxogroovy-7398's projects Team on Vercel.

A member of the Team first needs to authorize it.

[probably-ABHINAV]

@Vaishnavi10706 conflict pull then latest

[Vaishnavi10706]

All conflicts has been resolved now. @probably-ABHINAV