Build an AI email triage and priority inbox web app. Features: 1) Email connection: connect via Gmail API or Microsoft Graph to pull in your inbox, 2) AI priority scoring: AI analyzes each email and assigns a priority score (Urgent, Important, Routine, FYI, Spam) based on sender, content, deadlines, and your past behavior, 3) Daily briefing: each morning, AI generates a summary of the 5-10 emails that actually need your attention today, 4) Thread summarization: long email threads are condensed into a 3-bullet summary with key decisions and open questions, 5) Quick reply drafts: AI generates context-aware reply drafts for routine emails that you can approve with one click, 6) Action item extraction: AI pulls out tasks, deadlines, and meeting requests from emails and surfaces them in a sidebar, 7) Sender insights: AI profiles your frequent senders and shows response time patterns, 8) Snooze and schedule: snooze emails to resurface at the right time, 9) Bulk actions: AI suggests emails safe to archive or batch-reply. Use a clean, focused inbox UI with priority badges, color-coded urgency, and a right sidebar for the daily briefing.