v2.7.5 — Homepage Guest Polish

• Refreshed the logged-out homepage tone and first-impression styling.
• Added a small guest start card with Steam sign-in and guide shortcuts.
• Added a dedicated ApeTavern / Northbound RP credit section.
• Added a direct Northbound RP Discord link: https://discord.gg/VExsvp4PXT
• Kept the existing live community stats, quips, and signed-in homepage behavior.
• Tweeter was not modified.