v9.2.4 (1) — Help & feedback, Data Safety card, and stability fixes

[2026-10-25 v9.2.4 (1)] A polish and reliability update.

• Help & feedback, built in. A new Support section lets you send a ticket straight from the app and follow it there.
• Tell us how we're doing. A short, optional prompt asks for feedback after things go well, and leaving or cancelling now asks one quick question so we can improve.
• Purchases linked to your account. App Store subscriptions now attach securely to your Peptides Calculator account, so support can find and fix purchase issues faster.
• Data Safety card. Settings' seven backup rows collapse into one card that shows your backup status at a glance, with Back Up Now built in.
• Peptide search. The clear (x) button now restores the full list.
• Stability. Fixed a rare launch crash and hardened storage checks on startup.