Admin Panel Operations

Added

• Billing operations — Cancel subscription, refund payment, retry failed invoices
• User lifecycle — Password reset, suspend, ban, reactivate, change role, GDPR delete
• Organisation management — Delete with Stripe subscription cancellation
• System operations — Clear cache, view and replay failed webhooks
• Select component — Reusable <Select> supporting { id, name } and { value, label } formats

Changed

• All 22 native <select> elements replaced with reusable Select component
• Admin user and organisation detail pages redesigned with action sidebars