Adding branding and driver promotion tool kit

[DarrellRichards]

Summary

Changes made

How to test

• npm run lint
• npm run typecheck
• npm run test
• npm run build

Prisma / schema impact

• No schema changes
• Schema updated and migration included

Checklist

• Documentation updated if needed
• No secrets or local-only config committed
• Screenshots included for UI changes when helpful

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 59.58%. Comparing base (bbc8e98) to head (524564b).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main       #6      +/-   ##
==========================================
- Coverage   59.61%   59.58%   -0.04%     
==========================================
  Files           7        7              
  Lines         525      527       +2     
  Branches      181      183       +2     
==========================================
+ Hits          313      314       +1     
- Misses        165      166       +1     
  Partials       47       47              

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[Copilot]

Pull request overview

Adds community-facing branding and driver-promotion documentation, plus updates the Docker image to support Prisma/TSX tooling and runtime dependencies for deployments.

Changes:

• Add a comprehensive BRANDING_GUIDE.md for consistent iRaceHub representation across platforms.
• Add a DRIVER_PROMOTIONS_TOOLKIT.md with ready-to-use promotional copy/templates.
• Update Dockerfile to install tsx alongside Prisma and copy node_modules into the runtime image.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.

File	Description
DRIVER_PROMOTIONS_TOOLKIT.md	Adds promotional templates/scripts (social, email, stream, talking points) for drivers.
BRANDING_GUIDE.md	Adds brand identity, usage guidelines, and platform-specific promotion guidance.
Dockerfile	Adjusts runtime image to include Prisma/TSX tooling and copies dependencies into the runner stage.