Dashboard (`/admin`)

- Overview of metrics (campaigns, Excel files, templates, email configurations).

- "Status Breakdown" and "Contacts by Recent Campaign" graphs.

- List of recent campaigns with quick actions.

- "Quick Access" section to create campaigns, import Excel files, add templates, or configure emails.

Campaigns (`/admin/campaigns`)
- Filterable list (status, search) with actions (run, details, edit, delete).

- Create/edit form: name, description, status, Excel file, template.

- Details page: general information, associated Excel list, linked template, danger zone.

Excel Files (`/admin/excel-list`)
- Management of `.xlsx/.xls` imports, optional association with a campaign.

- Preview of the number of columns/rows and access to the detailed record.

- Import method with help on accepted formats.

Templates (`/admin/templates`)

- List of email/PDF templates, detected variables, default status.

- Creation/editing forms with HTML content and variable palette (drag and drop).

- PDF preview button available.

Email Configurations (`/admin/email`)
- List of configurations (associated template, PDF file, signature, default status).

- Forms to manage subject, PDF attachments, signature (text or image), default message.

SMTP Configurations (`/admin/smtp`)

- Table of SMTP servers (host, port, sender address, status).

- Ability to activate a configuration and delete old ones.

- Complete form (host, port, login, password, from name/address).

Scheduling (`/admin/planification`)
- List of scheduled executions (date, recurrence, status).

- Form: name, campaign, notification email, date/time, recurrence, description.

- Note reminding you to install the cron job `php artisan schedule:run`.