feat: dashboard stats

[gaspb]

Description

Added the dashboard and related stats
(sorry for the size, though most of it is cornucopia generated code, sql & deps locks)

This pr implements the stats service and dashboard, i'll follow up in other prs with :

• creating the mrr logs on subscription change (create, update, trial etc)
• some UI improvements and missing filters/interactions
• creating a seed with enough data to fill the dashboard
• multicurrency

Checklist

• The code follows the project's coding conventions and style guidelines.
• All tests related to the changes have passed successfully.
• Documentation has been updated to reflect the changes (if applicable).
• All new and existing unit tests have passed.
• I have self-reviewed my code and ensured its quality.
• I have added/updated necessary comments to aid understanding.

[thomas-hilaire]

👏