sdk-integration-checklisted

Review Android third-party SDK and navigation integration code, focusing on Firebase Cloud Messaging, Braze, AppsFlyer, Android App Links and custom URI schemes. ## Check - Token registration flow, user association, environment endpoint and initialization ordering. - Manifest metadata, intent filters, schemes/hosts and assetlinks-related configuration. - Deep-link parameter validation, routing correctness and unsafe external URI handling. - Lifecycle-related observer, receiver or callback cleanup. - Debug versus release and flavour-specific configuration leakage. - Logging of tokens, identifiers or sensitive payload data. ## Output Provide: 1. Integration scope found. 2. Confirmed issues with evidence and severity. 3. Configuration verification steps. 4. Suggested Kotlin or manifest patch snippets only where needed.