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/run-unit-tests.mjs

@@ -1,7 +1,7 @@
 import { readdirSync } from 'node:fs';
 import { spawnSync } from 'node:child_process';
 import path from 'node:path';
-import { fileURLToPath, pathToFileURL } from 'node:url';
+import { pathToFileURL } from 'node:url';
 
 export const ALLOCATION_TEST_FILES = Object.freeze([
   'src/data/focusAllocations.test.mjs',