refactor: move Telegram channel implementation to extensions/ (#45635)

* refactor: move Telegram channel implementation to extensions/telegram/src/

Move all Telegram channel code (123 files + 10 bot/ files + 8 channel plugin
files) from src/telegram/ and src/channels/plugins/*/telegram.ts to
extensions/telegram/src/. Leave thin re-export shims at original locations so
cross-cutting src/ imports continue to resolve.

- Fix all relative import paths in moved files (../X/ -> ../../../src/X/)
- Fix vi.mock paths in 60 test files
- Fix inline typeof import() expressions
- Update tsconfig.plugin-sdk.dts.json rootDir to "." for cross-directory DTS
- Update write-plugin-sdk-entry-dts.ts for new rootDir structure
- Move channel plugin files with correct path remapping

* fix: support keyed telegram send deps

* fix: sync telegram extension copies with latest main

* fix: correct import paths and remove misplaced files in telegram extension

* fix: sync outbound-adapter with main (add sendTelegramPayloadMessages) and fix delivery.test import path

extensions/telegram/src/api-logging.ts

@@ -0,0 +1,45 @@
+import { danger } from "../../../src/globals.js";
+import { formatErrorMessage } from "../../../src/infra/errors.js";
+import { createSubsystemLogger } from "../../../src/logging/subsystem.js";
+import type { RuntimeEnv } from "../../../src/runtime.js";
+
+export type TelegramApiLogger = (message: string) => void;
+
+type TelegramApiLoggingParams<T> = {
+  operation: string;
+  fn: () => Promise<T>;
+  runtime?: RuntimeEnv;
+  logger?: TelegramApiLogger;
+  shouldLog?: (err: unknown) => boolean;
+};
+
+const fallbackLogger = createSubsystemLogger("telegram/api");
+
+function resolveTelegramApiLogger(runtime?: RuntimeEnv, logger?: TelegramApiLogger) {
+  if (logger) {
+    return logger;
+  }
+  if (runtime?.error) {
+    return runtime.error;
+  }
+  return (message: string) => fallbackLogger.error(message);
+}
+
+export async function withTelegramApiErrorLogging<T>({
+  operation,
+  fn,
+  runtime,
+  logger,
+  shouldLog,
+}: TelegramApiLoggingParams<T>): Promise<T> {
+  try {
+    return await fn();
+  } catch (err) {
+    if (!shouldLog || shouldLog(err)) {
+      const errText = formatErrorMessage(err);
+      const log = resolveTelegramApiLogger(runtime, logger);
+      log(danger(`telegram ${operation} failed: ${errText}`));
+    }
+    throw err;
+  }
+}