# AI Chat Panel UI

## Module
Web

## Status
IMPLEMENTED

## Description
Full Advisory AI chat panel with message rendering, action buttons, object link chips, evidence drilldown, and explanation panels is implemented in the Angular frontend.

## Implementation Details
- **Feature directory**: `src/Web/StellaOps.Web/src/app/features/advisory-ai/`
- **Components**:
  - `autofix-button` (`src/Web/StellaOps.Web/src/app/features/advisory-ai/autofix-button.component.ts`)
  - `action-button` (`src/Web/StellaOps.Web/src/app/features/advisory-ai/chat/action-button.component.ts`)
  - `chat-message` (`src/Web/StellaOps.Web/src/app/features/advisory-ai/chat/chat-message.component.ts`)
  - `chat` (`src/Web/StellaOps.Web/src/app/features/advisory-ai/chat/chat.component.ts`)
  - `object-link-chip` (`src/Web/StellaOps.Web/src/app/features/advisory-ai/chat/object-link-chip.component.ts`)
  - `evidence-drilldown` (`src/Web/StellaOps.Web/src/app/features/advisory-ai/evidence-drilldown.component.ts`)
  - `explain-button` (`src/Web/StellaOps.Web/src/app/features/advisory-ai/explain-button.component.ts`)
  - `explanation-panel` (`src/Web/StellaOps.Web/src/app/features/advisory-ai/explanation-panel.component.ts`)
  - `plain-language-toggle` (`src/Web/StellaOps.Web/src/app/features/advisory-ai/plain-language-toggle.component.ts`)
  - `pr-tracker` (`src/Web/StellaOps.Web/src/app/features/advisory-ai/pr-tracker.component.ts`)
  - `remediation-plan-preview` (`src/Web/StellaOps.Web/src/app/features/advisory-ai/remediation-plan-preview.component.ts`)
- **Services**:
  - `chat` (`src/Web/StellaOps.Web/src/app/features/advisory-ai/chat/chat.service.ts`)
- **Models**:
  - `src/Web/StellaOps.Web/src/app/features/advisory-ai/chat/chat.models.ts`
- **Source**: Feature matrix scan

## E2E Test Plan
- **Setup**:
  - [ ] Log in with a user that has appropriate permissions
  - [ ] Navigate to `/triage/artifacts/:artifactId`
  - [ ] Ensure test data exists (scanned artifacts, SBOM data, or seed data as needed)
- **Core verification**:
  - [ ] Verify the panel/drawer opens on trigger (click, keyboard shortcut)
  - [ ] Verify the panel displays the correct detail data for the selected item
  - [ ] Verify the panel can be closed (X button, Escape key, backdrop click)
- **Edge cases**:
  - [ ] Verify graceful handling when backend API is unavailable (error state)
  - [ ] Verify responsive layout at different viewport sizes
  - [ ] Verify accessibility (keyboard navigation, screen reader labels, ARIA attributes)