Restrict editing of organizer general info to authorized users only

[Gagan-Ram]

Currently, any team member can edit general info of organizer in ey-common (https://app.eventyay.com/tickets/common/organizer/openai/update)
The PR aims to restrict the edit permission to only those Team members who has appropriate permission ("can_change_organizer_settings" to be precise)

Changes made:

• Disable form fields on UI if user don't have appropriate permission
• Only save the form with updated fields if user has the permission

Summary by Sourcery

Restrict editing of organizer general info to only those team members with the can_change_organizer_settings permission by adding permission checks to form rendering and submission.

Enhancements:

• Disable name and slug fields in the organizer general info form for users without the can_change_organizer_settings permission.
• Prevent unauthorized users from saving changes to the organizer name and slug by preserving the original values in form_valid.

[sourcery-ai]

Reviewer's Guide

This PR integrates organizer permission checks into the form lifecycle, disabling UI inputs for unauthorized users and preventing any saved changes if the user lacks the 'can_change_organizer_settings' permission.

Sequence diagram for organizer general info edit permission enforcement

sequenceDiagram
    actor User
    participant View as OrganizerUpdateView
    participant Form
    participant Permission as PermissionSystem

    User->>View: Request organizer general info edit page
    View->>Permission: Check 'can_change_organizer_settings' permission
    Permission-->>View: Permission result
    View->>Form: Generate form (fields disabled if no permission)
    User->>View: Submit form
    View->>Permission: Check 'can_change_organizer_settings' permission
    Permission-->>View: Permission result
    alt User has permission
        View->>Form: Save submitted data
    else User lacks permission
        View->>Form: Overwrite changes with original data
    end
    View->>User: Return response

Loading

File-Level Changes

Change	Details	Files
Added permission-based disabling of form fields	Invoke has_organizer_permission in get_form Disable 'name' and 'slug' fields when permission is missing	src/pretix/eventyay_common/views/organizer.py
Guarded form submission to discard unauthorized edits	Check permission again in form_valid Reset cleaned_data for 'name' and 'slug' to original values if unauthorized	src/pretix/eventyay_common/views/organizer.py

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[sourcery-ai]

Hey @Gagan-Ram - I've reviewed your changes and they look great!

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[Sak1012]

Hey Can you add screenshots of the changes

[Gagan-Ram]

@Sak1012 To test the PR, please create a Team that includes a member who does not have the "Can change organizer settings" permission.
Now this member must not able to change the organizer's name from their account.

[Saksham-Sirohi]

LGTM!