feat: F019 AI monitoring layer — output transparency & governance workspace

Full 2-panel workspace at /ops/ai-monitoring: metrics strip (total, failed,
pending, approval rate, top prompt version, active model), filterable output
table by type/status/error, and detail panel with output preview, prompt
versioning, error details, and role-aware review actions.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/provider/IAIMonitoringProvider.ts

@@ -0,0 +1,15 @@
+import type { AIOutput, AIOutputType } from '../domain/aiOutput'
+import type { ReviewStatus } from '../domain/enums'
+
+export interface AIMonitoringFilters {
+  type?: AIOutputType
+  reviewStatus?: ReviewStatus
+  hasError?: boolean
+  model?: string
+}
+
+export interface IAIMonitoringProvider {
+  getOutputs(filters?: AIMonitoringFilters): Promise<AIOutput[]>
+  getOutput(id: string): Promise<AIOutput | null>
+  updateReviewStatus(id: string, status: ReviewStatus): Promise<AIOutput>
+}

src/provider/MockupAIMonitoringProvider.ts

@@ -0,0 +1,29 @@
+import type { IAIMonitoringProvider, AIMonitoringFilters } from './IAIMonitoringProvider'
+import type { AIOutput } from '../domain/aiOutput'
+import type { ReviewStatus } from '../domain/enums'
+import { mockAIOutputs } from '../mock-data/aiOutputs'
+
+const store: AIOutput[] = [...mockAIOutputs]
+
+export const MockupAIMonitoringProvider: IAIMonitoringProvider = {
+  async getOutputs(filters?: AIMonitoringFilters) {
+    let results = [...store]
+    if (filters?.type) results = results.filter(o => o.type === filters.type)
+    if (filters?.reviewStatus) results = results.filter(o => o.reviewStatus === filters.reviewStatus)
+    if (filters?.hasError === true) results = results.filter(o => !!o.error)
+    if (filters?.hasError === false) results = results.filter(o => !o.error)
+    if (filters?.model) results = results.filter(o => o.model === filters.model)
+    return results.sort((a, b) => b.createdAt.localeCompare(a.createdAt))
+  },
+
+  async getOutput(id: string) {
+    return store.find(o => o.id === id) ?? null
+  },
+
+  async updateReviewStatus(id: string, status: ReviewStatus): Promise<AIOutput> {
+    const idx = store.findIndex(o => o.id === id)
+    if (idx === -1) throw new Error(`AIOutput ${id} not found`)
+    store[idx] = { ...store[idx], reviewStatus: status }
+    return store[idx]
+  },
+}