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/connection.ts

@@ -0,0 +1,51 @@
+import type { ConnectorCapabilities } from "./capabilities.js";
+
+/**
+ * Credential references are opaque handles into the vault (WP2).
+ * Raw tokens never appear in these types by design.
+ */
+export interface CredentialRef {
+  readonly kind: "credential-ref";
+  readonly id: string;
+}
+
+export type ProviderId = string;
+
+export interface Channel {
+  id: string;
+  workspaceId: string;
+  provider: ProviderId;
+  displayName: string;
+  createdAt: Date;
+}
+
+export interface ConnectorConnection {
+  id: string;
+  workspaceId: string;
+  provider: ProviderId;
+  channelId: string;
+  credentialId: CredentialRef;
+  /** Manifest-declared field values, e.g. instanceUrl for federated platforms. */
+  fields: Record<string, string>;
+  createdAt: Date;
+}
+
+export interface NormalizedIdentity {
+  provider: ProviderId;
+  remoteId: string;
+  handle: string;
+  displayName?: string;
+  avatarUrl?: string;
+}
+
+/** Channel on a remote video platform; account ≠ channel (federated platforms). */
+export interface RemoteVideoChannel {
+  id: string;
+  provider: ProviderId;
+  instanceUrl: string;
+  remoteChannelId: string;
+  handle: string;
+  displayName?: string;
+  avatarUrl?: string;
+  capabilities: ConnectorCapabilities;
+}