Add AI news risk analysis and dashboard

Analyze news revisions with independent model settings, evidence-backed risk ratings, event grouping, and rolling market outlooks. Add a default homepage, archival history, pending-result refresh, and isolated regression coverage.

Keep analysis disabled until explicitly enabled. Require a separately authorized schema migration before deployment and preserve compatibility with the previous six-service instance.

web/src/common/apis/risk/index.ts

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+import type * as Risk from "./type"
+import { request } from "@/http/axios"
+
+export const getRiskSettingsApi = () => request<Risk.Settings>({ url: "/risk/settings", method: "get" })
+export const saveRiskSettingsApi = (data: Risk.Settings) => request<null>({ url: "/risk/settings", method: "put", data })
+export const enableRiskApi = (data: Risk.Settings) => request<null>({ url: "/risk/enable", method: "post", timeout: 650000, data })
+export const getRiskOverviewApi = (hours: number) => request<Risk.Overview>({ url: "/risk/overview", method: "get", params: { hours } })
+export const listRiskEventsApi = (params: Risk.EventQuery) => request<{ items: Risk.RiskEvent[], total: number }>({ url: "/risk/events", method: "get", params })
+export const getRiskEventApi = (id: number) => request<{ event: Risk.RiskEvent, history: Risk.Analysis[] }>({ url: `/risk/events/${id}`, method: "get" })
+export const listRiskAnalysesApi = (params: { news_id?: number, revision_no?: number, failed?: boolean }, notify = true) => request<Risk.Analysis[]>({ url: "/risk/analyses", method: "get", params, notify })
+export const retryRiskAnalysisApi = (id: number) => request<null>({ url: `/risk/analyses/${id}/retry`, method: "post" })

web/src/common/apis/risk/type.ts

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+export interface RiskResult {
+  summary: string
+  reasoning: string
+  uncertainty: string
+  evidence: string
+  direction: string
+  verification: string
+  confidence: string
+  stars: number
+}
+export interface RiskEvent {
+  id: number
+  title: string
+  category: string
+  entities: string[]
+  stars: number
+  peak_stars: number
+  result: RiskResult
+  published_at: string
+  updated_at: string
+}
+export interface Settings { enabled: boolean, provider_id: number | null, model: string, start_at: string }
+export interface Analysis {
+  id: number
+  news_id: number
+  state: string
+  result: RiskResult | null
+  input: { title: string, source: string, url: string, published_at: string, progress_at: string, revision_no: number }
+  model: string | null
+  error: string | null
+  analyzed_at: string | null
+  historical: boolean
+}
+export interface Overview {
+  as_of: string
+  counts: Record<string, number>
+  coverage: { total: number, done: number, failed: number, pending: number, processing: number }
+  scenario: { direction: string, summary: string, conditions: string, counter_factors: string, uncertainty: string, event_ids: number[] } | null
+  snapshot_at: string | null
+  quotes: { at: string, BTCUSDT?: { lastPrice: string, priceChangePercent: string }, ETHUSDT?: { lastPrice: string, priceChangePercent: string } } | null
+  stale: boolean
+  error: string | null
+  heartbeat: string | null
+}
+export interface EventQuery { hours?: number, stars?: number, q?: string, start?: string, end?: string, page?: number }