dhpk-ios-platformlisted

# iOS platform SDK Routing index — load the reference that matches the task: | Task | Reference | |------|-----------| | Core Data store, encryption, migration | `references/coredata-encryption.md` | | Encrypting files/images, key storage | `references/cryptokit-keychain.md` | | Text recognition / OCR | `references/vision-ocr.md` | | Face ID / Touch ID / passcode | `references/local-authentication.md` | | Local reminders / scheduling | `references/notifications.md` | | Reading HealthKit data | `references/healthkit-read.md` | | Privacy manifest, usage strings, data protection | `references/privacy-compliance.md` | | Offline local store (actor + file-backed cache) | `references/actor-persistence.md` | --- ## Always-on non-negotiables (health / PHI data) These hold regardless of which reference you load — they encode babylon's PDPA Art. 6 special-category-data + App Review obligations: 1. **No iCloud for health data.** Prescriptions, medications, scan images, and member health profiles must never go to iCloud / CloudKit / iCloud backup. Exclude data files from backup; do not enable CloudKit on the Core Data store; never set `kSecAttrSynchronizable` on PHI keys. (App Review 5.1.3(ii).) 2. **Encrypt at rest.** The Core Data store holding PHI is encrypted — SQLCipher via EncryptedCoreData (high), or at minimum `NSFileProtectionComplete` on the store file (baseline). Images are encrypted with CryptoKit `AES.GCM` and written with `NSFileProtectionComplete`.