v0.5.5 — Token modal UX and freshness communication

UX

• Token modal clarity. Reframed "GitHub Access Token" as "Speed Boost: GitHub Token" to remove the auth/login connotation. Added a trust banner ("No account, no login, no signup. A GitHub token is just a speed pass for the API") with a Shield icon. Copy simplified: 60 vs 5,000 req/hr now explicit, link reads "Create a free token (zero permissions)". Modal widened to max-w-lg. Browser-native password reveal/autofill icons suppressed via CSS.
• Data freshness communication. A "Data updates when someone refreshes, not in real time." line now appears under the cache status row. Lock icon tooltips on Refresh and Full rescan buttons explain "Add a free GitHub token for faster scanning. No login needed."
• Community cache model explained. Pre-scan overlay rewritten: "Results are shared with everyone. When you scan, all future visitors see your results instantly." The 50k+ token warning now says "free token / zero permissions / no login, no signup."
• FAQ additions. Two new entries: "Do I need to create an account?" and "Is the data real-time?" Fixed a factual error: token storage was documented as localStorage but the implementation uses sessionStorage with a 30-minute TTL.
• Watch Mode wording. Tour step and dock button title replace "real time" with "polls GitHub every 60 seconds" for accuracy.
• Landing one-liner. A three-step summary added below the community count: "1. Paste a repo · 2. We scan GitHub · 3. Everyone sees the map".
• Header / floating nav. Token button label changed from "Add token" to "Faster scans" when no token is set.
• Privacy page. sessionStorage token storage and 30-minute TTL documented.