chore: remove dead compat barrels

src/agents/embedded-agent.ts

@@ -1,17 +0,0 @@
-export {
-  abortEmbeddedPiRun as abortEmbeddedAgentRun,
-  compactEmbeddedPiSession as compactEmbeddedAgentSession,
-  isEmbeddedPiRunActive as isEmbeddedAgentRunActive,
-  isEmbeddedPiRunStreaming as isEmbeddedAgentRunStreaming,
-  queueEmbeddedPiMessage as queueEmbeddedAgentMessage,
-  resolveActiveEmbeddedRunSessionId as resolveActiveEmbeddedAgentRunSessionId,
-  resolveEmbeddedSessionLane,
-  runEmbeddedPiAgent as runEmbeddedAgent,
-  waitForEmbeddedPiRunEnd as waitForEmbeddedAgentRunEnd,
-} from "./pi-embedded-runner.js";
-export type {
-  EmbeddedPiAgentMeta as EmbeddedAgentMeta,
-  EmbeddedPiCompactResult as EmbeddedAgentCompactResult,
-  EmbeddedPiRunMeta as EmbeddedAgentRunMeta,
-  EmbeddedPiRunResult as EmbeddedAgentRunResult,
-} from "./pi-embedded-runner.js";

src/context-engine/index.ts

@@ -1,26 +0,0 @@
-export type {
-  ContextEngine,
-  ContextEngineInfo,
-  AssembleResult,
-  CompactResult,
-  ContextEngineMaintenanceResult,
-  ContextEngineRuntimeContext,
-  IngestResult,
-  TranscriptRewriteReplacement,
-  TranscriptRewriteRequest,
-  TranscriptRewriteResult,
-} from "./types.js";
-
-export {
-  registerContextEngine,
-  getContextEngineFactory,
-  listContextEngineIds,
-  resolveContextEngine,
-} from "./registry.js";
-export type { ContextEngineFactory } from "./registry.js";
-
-export { LegacyContextEngine } from "./legacy.js";
-export { registerLegacyContextEngine } from "./legacy.registration.js";
-export { delegateCompactionToRuntime } from "./delegate.js";
-
-export { ensureContextEnginesInitialized } from "./init.js";