## ADDED Requirements

### Requirement: Display SMS permission state
The app SHALL display whether the SMS receive permission is granted, denied, or blocked by system settings.

#### Scenario: Permission is granted
- **WHEN** `RECEIVE_SMS` permission is granted
- **THEN** the app MUST show that the primary SMS capture path can be attempted

#### Scenario: Permission is denied
- **WHEN** `RECEIVE_SMS` permission is denied
- **THEN** the app MUST show that incoming SMS cannot be captured through the primary path until permission is granted

### Requirement: Explain capture path status
The app SHALL expose diagnostic state for each supported SMS capture path.

#### Scenario: Primary path receives an SMS
- **WHEN** the system broadcast path receives and parses an SMS
- **THEN** the app MUST show the latest receive time, source path, sender summary, parsed code, and parse strategy

#### Scenario: Primary path fails before parsing
- **WHEN** the app cannot receive or parse an SMS through the primary path
- **THEN** the app MUST show a specific reason such as missing permission, no broadcast received, empty body, or parser failure

#### Scenario: Optional Google API path fails
- **WHEN** SMS User Consent or SMS Retriever cannot complete
- **THEN** the app MUST show whether the failure came from unavailable Google Play services, timeout, user cancellation, or unmatched SMS format

### Requirement: Avoid unnecessary SMS content retention
The app SHALL minimize retention and logging of full SMS content.

#### Scenario: Verification code is parsed successfully
- **WHEN** the app extracts a verification code from an SMS
- **THEN** the app MUST display or retain the code, sender summary, timestamp, and parse metadata without requiring persistent storage of the full SMS body

#### Scenario: Debug body visibility is enabled
- **WHEN** a debug-only setting enables full body visibility
- **THEN** the app MUST keep that behavior local to the device and clearly separate it from normal display state

### Requirement: Provide recovery actions for permission problems
The app SHALL provide a clear recovery path when Android or HyperOS blocks SMS capture permissions.

#### Scenario: Permission cannot be granted in normal prompt
- **WHEN** the runtime permission prompt does not grant usable SMS access
- **THEN** the app MUST provide an action to open the system application details or permission settings page