# Sealed-Mode Install Enforcer (Air-Gap Support)

## Module
TaskRunner

## Status
IMPLEMENTED

## Description
Enforcer for sealed/air-gap mode that ensures task pack installations comply with offline constraints and logs all install actions for audit.

## Implementation Details
- **Enforcer interface**: `src/TaskRunner/StellaOps.TaskRunner/StellaOps.TaskRunner.Core/AirGap/ISealedInstallEnforcer.cs` -- sealed mode enforcement contract
- **Enforcer implementation**: `src/TaskRunner/StellaOps.TaskRunner/StellaOps.TaskRunner.Core/AirGap/SealedInstallEnforcer.cs` -- validates installations comply with offline constraints
- **Enforcement result**: `src/TaskRunner/StellaOps.TaskRunner/StellaOps.TaskRunner.Core/AirGap/SealedInstallEnforcementResult.cs` -- result model for enforcement checks
- **Sealed mode status**: `src/TaskRunner/StellaOps.TaskRunner/StellaOps.TaskRunner.Core/AirGap/SealedModeStatus.cs` -- current sealed mode state
- **Sealed requirements**: `src/TaskRunner/StellaOps.TaskRunner/StellaOps.TaskRunner.Core/AirGap/SealedRequirements.cs` -- requirements for sealed mode compliance
- **Audit logger**: `src/TaskRunner/StellaOps.TaskRunner/StellaOps.TaskRunner.Core/AirGap/ISealedInstallAuditLogger.cs` -- audit logging for install actions
- **Air-gap status provider**: `src/TaskRunner/StellaOps.TaskRunner/StellaOps.TaskRunner.Core/AirGap/IAirGapStatusProvider.cs` -- checks if system is in air-gap mode
- **HTTP status provider**: `src/TaskRunner/StellaOps.TaskRunner/StellaOps.TaskRunner.Infrastructure/AirGap/HttpAirGapStatusProvider.cs` -- HTTP-based air-gap status check
- **Bundle ingestion executor**: `src/TaskRunner/StellaOps.TaskRunner/StellaOps.TaskRunner.Infrastructure/Execution/BundleIngestionStepExecutor.cs` -- air-gap bundle ingestion step
- **Tests**: `src/TaskRunner/StellaOps.TaskRunner/StellaOps.TaskRunner.Tests/SealedInstallEnforcerTests.cs`, `BundleIngestionStepExecutorTests.cs`
- **Source**: Feature matrix scan

## E2E Test Plan
- [ ] Verify enforcer blocks network-dependent installations in sealed mode
- [ ] Test sealed mode status detection via HTTP provider
- [ ] Verify audit logger records all install actions in sealed mode
- [ ] Test bundle ingestion step works in offline environment
- [ ] Verify enforcement result reports compliance violations