feat(ipc): port 3g IPC + bgbash — framed Unix-socket server/client + background job registry, wire bash tools

apps/packages/infrastructure/src/ipc/index.ts

@@ -0,0 +1,17 @@
+/**
+ * IPC module — frame, protocol, connection, server, client.
+ * Mirrors `apps/infrastructure/src/ipc/mod.rs`.
+ */
+export { FrameReassembler, encodeFrame, MAX_PAYLOAD } from "./frame.ts";
+export { Connection } from "./conn.ts";
+export { IpcServer } from "./server.ts";
+export { IpcClient } from "./client.ts";
+export type {
+  KeyAction,
+  KeyActionName,
+  ClientRequest,
+  MessageEntry,
+  ToastEntry,
+  StatePayload,
+  DaemonFrame,
+} from "./protocol.ts";