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/dataCredits.js

@@ -7,7 +7,7 @@ import * as Cesium from 'cesium';
  * docs/pre-ship-audit-2026-07-01.md): every third-party data layer this app can
  * display carries its own license and required attribution — ODbL (OSM
  * datacenters/dams, adsb.lol, Overpass roads), CC BY-NC-SA (TeleGeography
- * cables), NASA FIRMS, CelesTrak, USGS, City of Austin, GBFS operators, OpenSky.
+ * cables), NASA FIRMS, CelesTrak, USGS, City of Austin, Fintraffic (CC BY 4.0),
  * The MIT code license does NOT cover this data.
  *
  * These credits are registered ONCE at init as STATIC credits with
@@ -122,6 +122,12 @@ export const DATA_CREDITS = [
       'CCTV cameras & frames: City of Austin, TX — ' +
       '<a href="https://data.austintexas.gov" target="_blank" rel="noopener">data.austintexas.gov</a>',
   },
+  {
+    key: 'txdot-cctv',
+    html:
+      'CCTV cameras &amp; frames (Texas): ' +
+      '<a href="https://its.txdot.gov/" target="_blank" rel="noopener">Texas Department of Transportation</a> (courtesy)',
+  },
   {
     key: 'caltrans-cctv',
     html:
@@ -135,6 +141,20 @@ export const DATA_CREDITS = [
       '<a href="https://tfl.gov.uk/info-for/open-data-users/" target="_blank" rel="noopener">Powered by TfL Open Data</a>. ' +
       'Contains OS data © Crown copyright and database rights.',
   },
+  {
+    key: 'ontario-511-cctv',
+    html:
+      'CCTV cameras &amp; frames (Ontario): ' +
+      '<a href="https://511on.ca/" target="_blank" rel="noopener">Ontario 511</a> ' +
+      '(<a href="https://www.ontario.ca/page/open-government-licence-ontario" target="_blank" rel="noopener">Open Government Licence - Ontario</a>)',
+  },
+  {
+    key: 'fintraffic-cctv',
+    html:
+      'CCTV cameras &amp; frames (Finland): Fintraffic / ' +
+      '<a href="https://www.digitraffic.fi/en/" target="_blank" rel="noopener">digitraffic.fi</a>, ' +
+      'license CC BY 4.0',
+  },
   {
     key: 'gbfs',
     html: 'Bikeshare availability: GBFS operator feeds (e.g. Austin BCycle)',
@@ -176,6 +196,40 @@ export const DATA_CREDITS = [
       '(<a href="https://earthdata.nasa.gov/firms" target="_blank" rel="noopener">earthdata.nasa.gov/firms</a>), ' +
       'part of NASA’s Earth Observing System Data and Information System (EOSDIS)',
   },
+  {
+    key: 'drivebc-cctv',
+    html:
+      'CCTV cameras &amp; frames (British Columbia): ' +
+      '<a href="https://www.drivebc.ca/" target="_blank" rel="noopener">DriveBC</a>. ' +
+      'Contains information licensed under the ' +
+      '<a href="https://www2.gov.bc.ca/gov/content/data/open-data/open-government-licence-bc" target="_blank" rel="noopener">Open Government Licence – British Columbia</a>. ' +
+      'Some cameras are supplied by partners (TransLink, the City of Vancouver, the City of Surrey, Parks Canada and others); each names its provider in the CCTV panel.',
+  },
+  {
+    key: 'tallinn-cctv',
+    html:
+      'CCTV cameras &amp; frames (Tallinn): City of Tallinn — ' +
+      '<a href="https://ristmikud.tallinn.ee/" target="_blank" rel="noopener">ristmikud.tallinn.ee</a> (courtesy)',
+  },
+  {
+    key: 'tarktee-cctv',
+    html:
+      'CCTV cameras &amp; frames (Estonia road weather): Transpordiamet / Tarktee — ' +
+      '<a href="https://tarktee.transpordiamet.ee/" target="_blank" rel="noopener">tarktee.transpordiamet.ee</a> (courtesy)',
+  },
+  {
+    key: 'warendorf-cctv',
+    html:
+      'Webcam (Warendorf): <a href="https://www.warendorf.de/" target="_blank" rel="noopener">Stadt Warendorf</a> (courtesy); ' +
+      'camera poses derived from OpenStreetMap geometry, © OpenStreetMap contributors (ODbL)',
+  },
+  {
+    key: 'nsw-cctv',
+    html:
+      'CCTV cameras &amp; frames (New South Wales): ' +
+      '<a href="https://www.livetraffic.com/" target="_blank" rel="noopener">Live Traffic NSW</a> — Transport for NSW ' +
+      '(<a href="https://creativecommons.org/licenses/by/4.0/" target="_blank" rel="noopener">CC BY 4.0</a>)',
+  },
   {
     key: 'telegeography',
     html: