fix(plugin-sdk): remove remaining bundled plugin src imports (openclaw#39638)

Verified:
- pnpm build
- pnpm check
- pnpm test:macmini

Co-authored-by: Kyle <3477429+kyledh@users.noreply.github.com>
Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>

extensions/mattermost/src/mattermost/monitor.ts

@@ -19,6 +19,7 @@ import {
   DEFAULT_GROUP_HISTORY_LIMIT,
   recordPendingHistoryEntryIfEnabled,
   isDangerousNameMatchingEnabled,
+  parseStrictPositiveInteger,
   registerPluginHttpRoute,
   resolveControlCommandGate,
   readStoreAllowFromForDmPolicy,
@@ -30,7 +31,6 @@ import {
   listSkillCommandsForAgents,
   type HistoryEntry,
 } from "openclaw/plugin-sdk/mattermost";
-import { parseStrictPositiveInteger } from "../../../../src/infra/parse-finite-number.js";
 import { getMattermostRuntime } from "../runtime.js";
 import { resolveMattermostAccount } from "./accounts.js";
 import {