deps: remove dead root dependency (#22471)

* chore(deadcode): add deadcode scanning and remove unused lockfile deps

* chore(changelog): mention deadcode CI scan pass

* ci: disable deadcode job temporarily

* docs(changelog): add PR ref and thanks for deadcode scan entry

* ci: comment out deadcode job condition while keeping it disabled

* Deps: remove dead root dependency from package manifest

* Changelog: reference PR for deadcode dependency cleanup

* Deps: remove unused root signal-utils

package.json

@@ -145,7 +145,6 @@
     "@grammyjs/runner": "^2.0.3",
     "@grammyjs/transformer-throttler": "^1.2.1",
     "@homebridge/ciao": "^1.3.5",
-    "@larksuiteoapi/node-sdk": "^1.59.0",
     "@line/bot-sdk": "^10.6.0",
     "@lydell/node-pty": "1.2.0-beta.3",
     "@mariozechner/pi-agent-core": "0.54.0",
@@ -182,7 +181,6 @@
     "playwright-core": "1.58.2",
     "qrcode-terminal": "^0.12.0",
     "sharp": "^0.34.5",
-    "signal-utils": "^0.21.1",
     "sqlite-vec": "0.1.7-alpha.2",
     "tar": "7.5.9",
     "tslog": "^4.10.2",