fix: Clarify Attio API task reassignment limitations

Redesign admin UI with terminal-style dashboard and clean up dead code

Add comprehensive CRM Bot Dashboard UI

Restructure docs with date-based organization and comprehensive migration summary

Disable signature verification for challenge handling

Move challenge verification to run before ExpressReceiver middleware

Add challenge verification before signature verification

Fix Slack Events API challenge verification

Fix ExpressReceiver endpoints configuration to use object format

Add debugging and try endpoints parameter for Slack webhook

Fix Slack webhook challenge issue by specifying correct endpoint path

Fix bot ID mismatch causing production bot to ignore messages

Enhance assessment note quality with stock ticker format

Implement completion-based chaining system with enhanced analytics

Fix Railway HTTP mode detection for cron endpoints