semi implemented and features implemented save checkpoint

docs/features/unchecked/cli/offline-verdict-verification-cli-plugin.md

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+# Offline Verdict Verification CLI Plugin
+
+## Module
+Cli
+
+## Status
+IMPLEMENTED
+
+## Description
+Offline and online verdict verification via CLI plugin: verify verdict signatures, replay bundles for deterministic verification, and validate input hashes using knowledge snapshots without server connectivity.
+
+## Implementation Details
+- **Command Group**: `src/Cli/StellaOps.Cli/Commands/VerdictCommandGroup.cs` -- `VerdictCommandGroup` for verdict commands
+- **Command Handlers**: `src/Cli/StellaOps.Cli/Commands/CommandHandlers.VerdictVerify.cs` -- verdict verification handlers
+- **Verdict Verifier**: `src/Cli/StellaOps.Cli/Services/VerdictAttestationVerifier.cs` -- verdict attestation verification
+- **Offline Kit**: `src/Cli/StellaOps.Cli/Services/OfflineKitStateStore.cs` -- offline kit state management
+- **Offline Mode Guard**: `src/Cli/StellaOps.Cli/Services/OfflineModeGuard.cs` -- offline mode enforcement
+- **Commands**:
+  - `stella verdict verify <digest>` -- verify verdict signature and integrity
+  - `stella verdict replay <digest>` -- replay verdict for deterministic verification
+  - `stella verdict verify-offline <bundle>` -- offline verification using knowledge snapshot
+
+## E2E Test Plan
+- [ ] Run `stella verdict verify sha256:abc123` and verify signature validation
+- [ ] Run `stella verdict replay sha256:abc123` and verify deterministic replay
+- [ ] Run `stella verdict verify-offline ./bundle/` and verify offline verification
+- [ ] Verify offline mode works without network connectivity
+- [ ] Verify input hash validation against knowledge snapshot
+- [ ] Verify exit code 0 for valid, non-zero for invalid