Autonomy level portal UI with mailbox-level controls

Features

• Autonomy level portal UI with mailbox-level controls
• Spam feedback loop with sender reputation scoring
• Configurable per-tenant spam filter rules
• Separate spam routing from approval queue with spam folder UI
• Light theme with inverted background and dark logo
• Portless subdomain-based dev routing for worktree isolation
• Blog posts: AI-Powered Outbound Prospecting, Autonomy Levels, Resend vs Postmark vs Molted, How AI Agents Send Email, Rate Limiting and Cooldowns, Prompt Injection Scanning, Automated Churn Prevention, Email Deliverability for AI Agents

Fixes

• Fixed webhook CLI auth and test delivery recording
• Fixed portless-aware service-to-service URL resolution
• Fixed portal typecheck errors in analytics hooks
• Fixed MDX curly brace escaping in blog posts