[Feature] Advanced Customization Options for CGU Clauses

[P4ST4S]

Description:
The current form only offers basic checkboxes (e-commerce, cookies, data collection, etc.) with no granular control over individual clauses. Users cannot customize specific sections or add custom clauses.

Context/Rationale:
Different businesses have unique needs. A one-size-fits-all approach limits the product's value. Users may need specific clauses for their industry, custom liability limitations, or unique service terms. Advanced customization is a Pro/Enterprise differentiator.

Implementation Suggestion / To-Do:

1. Create modular clause system with toggles for each section
2. Add rich text editor for custom clause insertion
3. Implement clause library with industry-specific templates (SaaS, e-commerce, marketplace, etc.)
4. Add conditional logic for clause dependencies
5. Build clause preview and explanation tooltips
6. Allow reordering of sections via drag-and-drop
7. Save custom clause templates