Redesigned hero section with split layout and live activity feed

Features

• Redesigned hero section with split layout and live activity feed
• New visuals for problem and pipeline landing sections
• Prompt injection visual demo on the landing page

Fixes

• Tenant delete column bug resolved
• Inbound emails only auto-link to existing threads when marked as replies
• Queued threads now viewable; clean emails no longer pile onto flagged threads
• Dispatch logs upgraded from debug to warn/log for better visibility
• Removed .com malware false positive, safety verdict now piped to threads
• Skill endpoint proxy now forwards tenantId correctly
• Removed inbound classification from portal