CI: restore main detect-secrets scan (#38438)

* Tests: stabilize detect-secrets fixtures

* Tests: fix rebased detect-secrets false positives

* Docs: keep snippets valid under detect-secrets

* Tests: finalize detect-secrets false-positive fixes

* Tests: reduce detect-secrets false positives

* Tests: keep detect-secrets pragmas inline

* Tests: remediate next detect-secrets batch

* Tests: tighten detect-secrets allowlists

* Tests: stabilize detect-secrets formatter drift

extensions/telegram/src/channel.test.ts

@@ -129,7 +129,7 @@ describe("telegramPlugin duplicate token guard", () => {
     cfg.channels!.telegram!.accounts!.ops = {
       ...cfg.channels!.telegram!.accounts!.ops,
       webhookUrl: "https://example.test/telegram-webhook",
-      webhookSecret: "secret",
+      webhookSecret: "secret", // pragma: allowlist secret
       webhookPort: 9876,
     };