refactor(speech-core): remove redundant API back-edge

packages/speech-core/src/tts.test.ts

@@ -83,8 +83,8 @@ vi.mock("openclaw/plugin-sdk/channel-targets", () => ({
   },
 }));
 
-vi.mock("../api.js", async () => {
-  const actual = await vi.importActual<typeof import("../api.js")>("../api.js");
+vi.mock("openclaw/plugin-sdk/speech-core", async () => {
+  const actual = await vi.importActual("openclaw/plugin-sdk/speech-core");
   const mockProvider: SpeechProviderPlugin = {
     id: "mock",
     label: "Mock",

packages/speech-core/src/tts.ts

@@ -27,17 +27,6 @@ import {
 import { isVerbose, logVerbose } from "openclaw/plugin-sdk/runtime-env";
 import { tempWorkspaceSync, resolvePreferredOpenClawTmpDir } from "openclaw/plugin-sdk/sandbox";
 import { privateFileStoreSync } from "openclaw/plugin-sdk/security-runtime";
-import {
-  normalizeLowercaseStringOrEmpty,
-  normalizeOptionalLowercaseString,
-  normalizeOptionalString,
-} from "openclaw/plugin-sdk/string-coerce-runtime";
-import { stripMarkdown } from "openclaw/plugin-sdk/text-chunking";
-import {
-  resolveConfigDir,
-  resolveUserPath,
-  truncateUtf16Safe,
-} from "openclaw/plugin-sdk/text-utility-runtime";
 import {
   canonicalizeSpeechProviderId,
   getSpeechProvider,
@@ -57,7 +46,18 @@ import {
   type TtsDirectiveOverrides,
   type TtsDirectiveParseResult,
   type TtsConfigResolutionContext,
-} from "../api.js";
+} from "openclaw/plugin-sdk/speech-core";
+import {
+  normalizeLowercaseStringOrEmpty,
+  normalizeOptionalLowercaseString,
+  normalizeOptionalString,
+} from "openclaw/plugin-sdk/string-coerce-runtime";
+import { stripMarkdown } from "openclaw/plugin-sdk/text-chunking";
+import {
+  resolveConfigDir,
+  resolveUserPath,
+  truncateUtf16Safe,
+} from "openclaw/plugin-sdk/text-utility-runtime";
 import { withSpeakerSelectionCompat } from "../speaker.js";
 import {
   resolvePrimaryVoiceProviderCandidate,