semi implemented and features implemented save checkpoint

docs/features/unchecked/cli/advisoryai-chat-cli.md

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+# AdvisoryAI Chat CLI (stella advise ask)
+
+## Module
+Cli
+
+## Status
+IMPLEMENTED
+
+## Description
+Interactive AI chat queries from the terminal scoped to specific container images, digests, or environments for security advisory assistance.
+
+## Implementation Details
+- **Command Group**: `src/Cli/StellaOps.Cli/Commands/Advise/AdviseChatCommandGroup.cs` -- `AdviseChatCommandGroup` (internal static class)
+- **Chat Renderer**: `src/Cli/StellaOps.Cli/Commands/Advise/ChatRenderer.cs` -- terminal rendering for chat responses
+- **Chat Service**: `src/Cli/StellaOps.Cli/Services/Chat/` -- backend chat client and models
+- **Chat Models**: `src/Cli/StellaOps.Cli/Services/Models/Chat/` -- request/response DTOs
+- **Commands**:
+  - `stella advise ask <query>` -- ask the advisory AI assistant a question. Options: `--image|-i <ref>` (scope to container image), `--digest|-d <digest>` (scope to artifact digest), `--environment|-e <env>` (scope to environment)
+  - `stella advise chat-doctor` -- diagnose advisory AI connectivity and configuration
+  - `stella advise chat-settings` -- view/update chat configuration
+- **Configuration**: `src/Cli/StellaOps.Cli/Configuration/StellaOpsCliOptions.cs` -- CLI options including advisory AI endpoint settings
+
+## E2E Test Plan
+- [ ] Run `stella advise ask "What CVEs affect this image?"` and verify a response is returned
+- [ ] Run `stella advise ask "Is CVE-2024-1234 reachable?" --image myregistry/app:v1.0` and verify image-scoped response
+- [ ] Run `stella advise ask "Show risk summary" --digest sha256:abc123` and verify digest-scoped response
+- [ ] Run `stella advise ask "What's the risk?" --environment production` and verify environment-scoped response
+- [ ] Run `stella advise chat-doctor` and verify connectivity/configuration diagnostics
+- [ ] Run `stella advise chat-settings` and verify settings are displayed
+- [ ] Verify error handling when advisory AI service is unavailable
+- [ ] Verify `--verbose` flag shows additional request/response details