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/safe-content/src/limits.ts

@@ -0,0 +1,23 @@
+export type SafeContentLimits = {
+  /** Max input characters considered; the rest is dropped and `truncated` set. */
+  readonly maxInputLength: number;
+  /** Max element nesting tracked by the HTML parser; deeper structure is flattened to text. */
+  readonly maxDepth: number;
+  /** Max AST nodes emitted per document. */
+  readonly maxNodes: number;
+  /** Max characters in any single URL. */
+  readonly maxUrlLength: number;
+};
+
+export const DEFAULT_LIMITS: SafeContentLimits = {
+  maxInputLength: 20_000,
+  maxDepth: 32,
+  maxNodes: 2_000,
+  maxUrlLength: 2_048,
+};
+
+export const LINK_PREVIEW_LIMITS = {
+  title: 300,
+  description: 1_000,
+  siteName: 100,
+} as const;