mail_activity_board

Purpose

Provides a multi-view board that lets users browse and navigate mail activities directly from dashboards and record chatter.

Features

mail.activity: Exposes an Activities board action with kanban, list, form, calendar, pivot, and graph views accessible from the Boards menu.
mail.activity: Adds related_model_instance and helper logic so each activity shows its source document and offers one-click navigation back to it.
mail.activity.mixin: Adds redirect_to_activities to open the activity board filtered on the current record, wired to the chatter's View Activities button.
mail.activity: Enhances activity form, list, and kanban displays with origin details, meeting timing and attendees, user avatars, and deadline-based decorations for quick status cues.
mail.activity: Extends search options with user and origin grouping plus filters for activities scheduled within the next month or six months.
security: Introduces a Show mail activity board group granting menu access, assigned by default to root and administrator users.