Bc5 assets

[jzimdars]

Update for Basecamp 5.

• Logo assets
• Background color

[Copilot]

Pull request overview

Updates Basecamp CLI’s branding for Basecamp 5 by swapping the README header logo, updating the OAuth callback page background color, and replacing the callback-page inline SVG logo with a PNG.

Changes:

• Update README header image to assets/bc5-snowglobe.png.
• Update OAuth callback page background color.
• Replace embedded callback logo SVG with a base64-encoded PNG across the callback result pages.

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Reviewed changes

Copilot reviewed 7 out of 9 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
README.md	Switch README header logo asset to the BC5 snowglobe image.
internal/auth/callback.html	Adjust callback page background color styling.
internal/auth/callback_success.html	Replace inline SVG logo with base64 PNG for success page.
internal/auth/callback_invalid.html	Replace inline SVG logo with base64 PNG for invalid-link page.
internal/auth/callback_exchange_failed.html	Replace inline SVG logo with base64 PNG for exchange-failed page.
internal/auth/callback_error.html	Replace inline SVG logo with base64 PNG for generic error page.
internal/auth/callback_denied.html	Replace inline SVG logo with base64 PNG for denied-access page.
assets/basecamp-badge.svg	Remove the old SVG badge asset.

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Review completed

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[Copilot]

Pull request overview

Copilot reviewed 9 out of 11 changed files in this pull request and generated 3 comments.