feat: release contextual omnichannel customer platform

Add Telegram, WhatsApp and email account management, realtime messaging, contextual multilingual AI, customer intelligence, knowledge workflows, enterprise controls, a unified design system and complete repository documentation.

src/types/messaging.ts

@@ -32,7 +32,24 @@ export interface Message {
   translationCn?: string
   translationStatus?: 'pending' | 'completed' | 'failed'
   translatedAt?: string
+  translationMethod?: 'ai-contextual' | 'ai-direct' | 'source'
+  translationContextMessages?: number
+  translationConversationSummaryApplied?: boolean
+  translationModel?: string
+  intentStatus?: 'pending' | 'completed' | 'failed'
+  intentAnalysis?: {
+    primary: string
+    label: string
+    confidence: number
+    urgency: 'low' | 'medium' | 'high' | 'urgent'
+    sentiment: 'positive' | 'neutral' | 'negative' | 'angry'
+    entities: string[]
+    rationale: string
+    analyzedAt: string
+    model: string
+  }
   originalLang: string
+  targetLang?: string
   status: MessageStatus
   createdAt: string
   isImportant?: boolean
@@ -96,6 +113,37 @@ export interface Conversation {
   presence?: 'available' | 'unavailable' | 'composing' | 'recording' | 'paused'
   presenceUpdatedAt?: string
   lastSeenAt?: string
+  translationTargetLang?: string
+  messageIntentEnabled?: boolean
+  aiContextStatus?: 'waiting' | 'queued' | 'compressing' | 'ready' | 'failed'
+  aiContextSourceMessageCount?: number
+  aiContextPendingMessages?: number
+  aiContextCompressedAt?: string
+  aiContextCompactedMessageIds?: string[]
+  aiContextMemory?: {
+    summary: string
+    facts: string[]
+    commitments: string[]
+    products: string[]
+    unresolved: string[]
+    preferences: string[]
+    updatedThroughMessageId: string
+    sourceMessageCount: number
+    updatedAt: string
+    model: string
+    version: number
+  }
+}
+
+export interface AiBackfillStatus {
+  status: 'not-started' | 'queued' | 'running' | 'completed' | 'failed'
+  totalCount: number
+  completedCount: number
+  pendingCount: number
+  progress: number
+  startedAt?: string
+  completedAt?: string | null
+  lastError?: string
 }
 
 export type ChannelStatus = 'connected' | 'disconnected' | 'error' | 'paused' | 'unconnected'
@@ -142,6 +190,8 @@ export interface SendMessagePayload {
   text: string
   /** 已确认的中文参考译文，仅在内部消息记录中保存 */
   translationCn?: string
+  /** auto 表示根据客户最近消息或客户画像自动选择目标语言 */
+  targetLang?: string
   replyToId?: string
   replyPreview?: string
   type?: MessageType