Tighten datasheet model matching and keep given fields of view

Codec, product and resolution words never identify a model; generation suffixes such as Mk II no longer fall back to the base model; a mismatched manufacturer never matches, and brand-only numeric names need the brand. The datasheet FOV only fills when the source and seed give none and the pose is not curated, and DATASHEET is shown only while no calibration offset applies. Adds the CC0 extract to DATA_SOURCES.

DATA_SOURCES.md

@@ -185,6 +185,7 @@ The [Bhote Koshi event pack](public/events/bhote-koshi-2026/README.md), under `p
 | **Natural Earth countries, states and provinces** (260 admin-0/map units + 4,587 admin-1 polygons)             | `natural_earth/`                  | **Public domain**                                                                                         | ✅ (no restrictions)                             | "Made with Natural Earth" (courtesy credit — not legally required)          |
 | **US Census Bureau counties** (3,235 county polygons)                       | `us_census_counties/`             | **Public domain**                                                                                         | ✅ (no restrictions)                             | "U.S. Census Bureau" (courtesy — not legally required)                      |
 | **CCTV ground heights** (3,445 cameras)                                     | `cctv_ground_heights/`            | Precomputed camera placement heights, aligned to work with Google Photorealistic 3D Tiles (folder README) | —                                                | —                                                                           |
+| **CCTV Camera Database** model-enrichment extract v2.26.0 (17 camera-model records) | `src/layers/cctv/modelSpecs.js` | **CC0-1.0** (public domain dedication) | ✅ (no restrictions) | "Specs: cctv-database.com" (courtesy — not legally required) |
 
 ### ⚠️ TeleGeography is bundled but NonCommercial
 
@@ -210,6 +211,17 @@ commercial use with attribution and applicable database share-alike/access
 obligations; it does not license the application code. Trimmed test-only tile
 fixtures retain their provenance in `src/data/fixtures/README.md`.
 
+### CCTV Camera Database (`src/layers/cctv/modelSpecs.js`)
+
+The CCTV layer's hardware-model specs are a small verbatim extract (v2.26.0) of the
+[CCTV Camera Database](https://github.com/ch-bas/cctv-camera-database), an open dataset of
+camera models transcribed from manufacturer datasheets, dedicated to the public domain under
+**CC0-1.0**. Only the records for hardware that the integrated public catalogs name (King
+County, Sarasota County and Sioux Falls) are bundled, compiled into the module. Nothing is
+fetched at runtime. The records describe camera products (optics, resolution, night vision)
+only, never endpoints, stream paths or access data. CC0 requires no attribution; the CCTV HUD
+credits it anyway as `SPECS: CCTV-DATABASE.COM` beside any spec line it renders.
+
 ### Bundled OpenStreetMap data
 
 Bundled OSM-derived data is distributed under [ODbL 1.0](https://opendatacommons.org/licenses/odbl/1-0/), separately from the MIT code: [datacenters](src/data/local_data/datacenters/), [dams](src/data/local_data/dams/) (via Open Infrastructure Map), [military names](src/data/local_data/osm_military_names/), and [OSM test fixtures](src/data/fixtures/). Keep © OpenStreetMap contributors and offer modified databases under ODbL.