feat(cctv): seven camera packs, semantic labels, terrain-clear monitor planes (#433)

Seven contributed CCTV camera packs (Ontario 511, Fintraffic Finland, DriveBC, TxDOT Texas, Estonia Tallinn + Tarktee, Warendorf, Live Traffic NSW) on a fair per-pack catalog cap; semantic camera labels; monitor planes lifted clear of the terrain from a precomputed, bundled ground-height dataset. Default catalog 800 → 3,446 cameras. Full context in PR #433.

Co-authored-by: sendmebits <[email protected]>
Co-authored-by: avocadoAgent <[email protected]>
Co-authored-by: Alex Harvey <[email protected]>
Co-authored-by: Jason Meredith <[email protected]>
Co-authored-by: Daniel Smith <[email protected]>
Co-authored-by: Vladimir Sobolev <[email protected]>
Co-authored-by: Matthias Schneider <[email protected]>
Co-authored-by: Cyber Knight <[email protected]>
Co-authored-by: NovaSoft Australia <[email protected]>

src/data/cctvDisplayCode.test.mjs

@@ -0,0 +1,61 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import {
+  CAMERA_CODE_MAX_CHARS,
+  cameraDisplayCode,
+  normalizeSourceItem,
+} from '../../server/providers/cctv/normalize.js';
+
+test('cameraDisplayCode trims long names with an ellipsis and collapses whitespace', () => {
+  assert.equal(
+    cameraDisplayCode(' IH 35   at Cesar Chavez '),
+    'IH 35 at Cesar Chavez',
+  );
+  const long = 'City of Windsor – Goyeau Street and Park Street';
+  const code = cameraDisplayCode(long);
+  assert.equal(code.length, CAMERA_CODE_MAX_CHARS);
+  assert.ok(code.endsWith('…'));
+  assert.equal(cameraDisplayCode(''), '');
+});
+
+test('every pack labels by its feed name; explicit codes win; the id is the last resort', () => {
+  const base = { lat: 1, lon: 1, url: 'https://x.test/a.jpg' };
+  assert.equal(
+    normalizeSourceItem({
+      ...base,
+      id: '354',
+      name: '5TH ST / CONGRESS AVE',
+      sourceKind: 'austin-open-data',
+    }).code,
+    '5TH ST / CONGRESS AVE',
+  );
+  assert.equal(
+    normalizeSourceItem({
+      ...base,
+      id: 'on-860',
+      name: 'Goyeau Street and Park Street',
+      sourceKind: 'ontario-511-open-data',
+    }).code,
+    'GOYEAU STREET AND PARK STRE…',
+  );
+  assert.equal(
+    normalizeSourceItem({
+      ...base,
+      id: 'nsw-46fa631a',
+      name: 'Erskine Street looking west',
+      sourceKind: 'nsw-livetraffic',
+      code: 'ERSKINE ST (SYDNEY)',
+    }).code,
+    'ERSKINE ST (SYDNEY)',
+  );
+  assert.equal(
+    normalizeSourceItem({
+      ...base,
+      id: 'fi-c1455101',
+      name: '',
+      sourceKind: 'fintraffic-open-data',
+    }).code,
+    'fi-c1455101',
+    'a missing name falls back to the id',
+  );
+});