Tactical Media Broadcast Hub — initial release

Self-hosted multi-platform broadcast newsroom for activist collectives:
publishing pipeline with group approval and DST-proof scheduling, TweetDeck-style
column wall with hostile-content-safe rendering, live control room with Auto
Director, bridged chat governance with polls and quorum, distributed sandboxed
transcode workers, encrypted content-addressed archive, monthly analytics.

MIT licensed. See README.md and docs/.

packages/core/src/social.ts

@@ -0,0 +1,89 @@
+import type { ProviderId } from "./connection.js";
+
+export interface FeedItem {
+  id: string;
+  provider: ProviderId;
+  remoteId: string;
+  authorHandle: string;
+  text: string;
+  mediaUrls: string[];
+  createdAt: Date;
+  metrics: Record<string, number>;
+}
+
+export interface Feed {
+  id: string;
+  workspaceId: string;
+  connectionId: string;
+  kind: "home" | "mentions" | "search" | "list";
+  query?: string;
+}
+
+export interface Conversation {
+  id: string;
+  workspaceId: string;
+  connectionId: string;
+  participantHandles: string[];
+  lastMessageAt: Date;
+  unreadCount: number;
+  assignedUserId?: string;
+}
+
+export interface Comment {
+  id: string;
+  provider: ProviderId;
+  remoteId: string;
+  onRemoteId: string;
+  authorHandle: string;
+  text: string;
+  createdAt: Date;
+}
+
+export interface Reaction {
+  id: string;
+  provider: ProviderId;
+  onRemoteId: string;
+  kind: string;
+  count: number;
+}
+
+export interface Metric {
+  id: string;
+  workspaceId: string;
+  subjectType: "publication" | "channel" | "livestream";
+  subjectId: string;
+  capturedAt: Date;
+  values: Record<string, number>;
+}
+
+export interface AnalyticsSnapshot {
+  subjectId: string;
+  windowStart: Date;
+  windowEnd: Date;
+  series: readonly Metric[];
+}
+
+export interface AuditLogEntry {
+  id: string;
+  workspaceId: string;
+  actorUserId: string;
+  actorRole: string;
+  action: string;
+  targetType: string;
+  targetId: string;
+  diff: Record<string, unknown> | null;
+  ip?: string;
+  sessionId?: string;
+  at: Date;
+  prevHash?: string;
+  hash: string;
+}
+
+export interface WebhookEvent {
+  id: string;
+  workspaceId: string;
+  provider: ProviderId;
+  eventType: string;
+  payload: Record<string, unknown>;
+  receivedAt: Date;
+}