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.

tools/pano-pinhole.mjs

@@ -34,13 +34,11 @@
  * Dependencies: sharp (devDependency)
  */
 
-import { readFileSync, mkdirSync, writeFileSync } from 'node:fs';
+import { mkdirSync } from 'node:fs';
 import { resolve, join, basename, extname } from 'node:path';
-import { fileURLToPath } from 'node:url';
 import { projectRoot } from '../scripts/project-root.mjs';
 import sharp from 'sharp';
 
-const __dirname = fileURLToPath(new URL('.', import.meta.url));
 const PROJECT_ROOT = projectRoot(import.meta.url);
 
 // ---------------------------------------------------------------------------