chore: remove unused imports and local helpers

Drop module-local helpers that nothing calls (linkAbort, summarize,
stringOption, summarizeEntity and the polygonCenter, propertyObject and
unwrapProperties helpers only it used, CALLOUT_DOT_SIZE_PX) and unused
import specifiers in runtime modules, tests, QA scripts and tools.

None of the removed bindings is exported. Re-exports such as the ALPR
policy constants and every package export are unchanged.

scripts/qa-failstate-b10.mjs

@@ -34,10 +34,6 @@
 import puppeteer from 'puppeteer';
 import fs from 'node:fs';
 import path from 'node:path';
-import { fileURLToPath } from 'node:url';
-
-const __dirname = path.dirname(fileURLToPath(import.meta.url));
-const REPO_ROOT = path.resolve(__dirname, '..');
 
 const argv = process.argv.slice(2);
 const getOpt = (name, dflt) => {