New

• api: add per-email tracking override and suppress_list_management_header
• dashboard: add tab navigation to analytics page
• dashboard: simplify navigation with grouped sidebar and page consolidation
• security: close remaining agent security gaps
• security: add agent-specific security hardening for mailbox API
• security: advanced prompt injection defenses for agent mailboxes
• add dashboard delight, MCP tools, and GDPR coverage for agent mailboxes
• api: add contact book and analytics for agent mailboxes
• api: add full-text search and labels for agent mailbox messages
• api: add reply API and conversation threading for agent mailboxes
• worker: add attachment storage via Hetzner Object Storage
• worker: add auto-responder with loop prevention for agent mailboxes
• worker: add webhook support for agent mailbox messages
• dashboard: register missing templates and redirect logged-in users from login #332
• smtp: add STARTTLS support for inbound SMTP server #331

Fixed

• landing: add Python SDK to code examples and deploy 404 page
• dns: enforce DMARC reject and SPF hard fail policies
• tracking: change tracking default to opt-in for better deliverability
• security: restrict mailbox local_part to safe characters
• migration: remove CONCURRENTLY from GIN index creation
• resolve clippy warnings and update test fixtures for agent mailbox fields
• dashboard: remove unsupported truncate filter from mailbox detail
• smtp: use Trusted SSL config to serve full certificate chain
• dashboard: use format_date/format_datetime filters in mailbox templates #330