Document the News layer's own sources, keys and limits

DATA_SOURCES, the README's layer and key tables, CURRENT-STATE and the
changelog describe the News layer as it now is: a configured news server,
or Core's own reading of GDELT (no key), Liveuamap (optional) and World
News API (Local, free plan backlink credited). .env.example gives the
download sizes and the daily read budget; KNOWN-ISSUES lists what machine
coding gets wrong and which disputed areas are named as themselves.

DATA_SOURCES.md

@@ -39,7 +39,10 @@ How to read this:
 | **NASA GIBS** (WMTS tiles + Worldview Snapshots) and **NASA CMR** (granule catalog) | Recent Imagery layer: HLS S30/L30 (Sentinel-2, Landsat 8/9) and VIIRS true-colour tiles draped on the map, per-day thumbnails and PNG exports; the HLS granule catalog (dates, cloud, footprints) for a selected box | U.S. public domain (NASA data); keyless, browser-direct (CORS `*`); no bulk use — one 30-day catalog query per box, tiles bounded to the box, six tile requests in flight | "We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS)." — [gibs.earthdata.nasa.gov](https://gibs.earthdata.nasa.gov), [HLS](https://lpdaac.usgs.gov/products/hlss30v002/) |
 | **NIFC WFIGS** (Wildland Fire Interagency Geospatial Services, ArcGIS feature service) | Fire Perimeters layer: current interagency wildfire incident perimeters, containment, and incident facts | U.S. public domain (interagency wildland-fire data published through the [NIFC Open Data portal](https://data-nifc.opendata.arcgis.com/)); fetched keyless through `/api/fire-perimeters` (5-minute server cache) with `exceededTransferLimit` paging | "Wildfire perimeters: National Interagency Fire Center (WFIGS)" |
 | **S2 Underground GhostMaps** (`github.com/s2underground/GhostMaps`) | S2 GhostMaps layer: the current edition of S2's KMZ intel products (Common Intelligence Picture, 30-day kinetic pull, Border Crisis Map, Iran and Yemen products, newest incident drop). Keyless. `/api/ghostmaps` reads the branch head from git's ref advertisement every 15 s (`GHOSTMAPS_POLL_SECONDS`, minimum 5 s), lists the tree through the GitHub REST API only when the head changes (optional `GITHUB_TOKEN`), downloads files by commit-pinned raw URLs into `.gev-cache/ghostmaps/` and pushes new catalogs to browsers over server-sent events | [CC BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/) (repository README: "S2 Underground © 2025 by S2A1"); non-commercial, attribution required; files are fetched at runtime, never stored in this repository | "S2 GhostMaps intel products: S2 Underground © by S2A1, CC BY-NC-SA 4.0" — shown in-app |
-| **News server** (`GEV_NEWS_ORIGIN`, optional; none by default) | News layer: curated hotspots and the last 24 h of reports from many publishers, merged into events. Core serves no news itself; the local server forwards the layer's `/api/news/hotspots`, `/feed` and `/outline` GET requests to the configured server | Each report stays its publisher's: headlines and summaries link to the original article, and pictures are hotlinked from the publisher's site (no referrer), never stored | Per report: publisher name and article link on every card; picture cards name the picture's publisher. No single provider is credited for the feed |
+| **News server** (`GEV_NEWS_ORIGIN`, optional; none by default) | News layer, both sections: the last 24 h of reports from many publishers. Set, the local server forwards the layer's `/api/news/hotspots`, `/feed` and `/outline` GET requests to it and Core reads none of the three sources below. Which providers stand behind its feed is the news server's to state | Each report stays its publisher's: headlines and summaries link to the original article, and pictures are hotlinked from the publisher's site (no referrer), never stored | Per report: publisher name and article link on every card; picture cards name the picture's publisher. The Data attribution popover states that places, categories, severity and English headlines are derived automatically and can be wrong |
+| **GDELT 2.0 events and GKG** (`data.gdeltproject.org/gdeltv2/`; no key; used only without a news server) | News layer, Conflicts: the last 24 h of GDELT's 15-minute event exports (`*.export.CSV.zip`, about 100 KB each), read server-side as they appear. Physical violence only (CAMEO roots 18–20); one report per story, copies of one agency story merged; placed at GDELT's location for it (a town the article's words name beats a bare country). Titled by the article's page title from the GKG export of the same quarter hour (`*.gkg.csv.zip`, about 6 MB each) for the newest 3 h, else by the words of the article's address. GDELT's actor coding is never shown. Categories, relevance and severity by bundled rules | [GDELT Terms of Use](https://www.gdeltproject.org/about.html#termsofuse): unrestricted academic, commercial and governmental use, with citation and a link to the GDELT Project. Coded events, page titles and article links only; linked articles keep their publishers' terms | "GDELT Project" with a link to gdeltproject.org in the Data attribution popover; "via GDELT Project", the publisher's domain and the article link on every card |
+| **Liveuamap** (`a.liveuamap.com/api`, `LIVEUAMAP_API_KEY`, optional, paid; used only without a news server) | News layer, Conflicts, beside GDELT: Liveuamap's worldwide mapped items of the last 24 h (`a=mpts`), read server-side every 5 minutes; categories and severity are read from the headline by bundled rules | Liveuamap API terms of the operator's own subscription. Headlines, places and links only; item pictures and clips are hotlinked from Liveuamap, never stored | "Liveuamap" with a link in the Data attribution popover once its items show; "Liveuamap" and the item's Liveuamap link on every card |
+| **World News API** (`api.worldnewsapi.com/search-news`, `WORLDNEWSAPI_KEY`, optional; used only without a news server) | News layer, Local: the last 24 h of news by the source country at the view centre (country from the bundled Natural Earth admin-0 pack; none in a disputed area), read server-side once per country every 30 minutes, about 1.5 points a read; at most `WORLDNEWSAPI_DAILY_READS` reads a day (default 30), after which Local says the daily limit is reached. Sport, entertainment, lifestyle and travel left out | [World News API terms](https://worldnewsapi.com/terms/) of the operator's own plan; the free plan (50 points a day) requires a visible backlink to worldnewsapi.com in the app, paid plans do not. Titles and links only; article text and summaries are not kept or shown; pictures are hotlinked from the publisher | The "World News API" link to worldnewsapi.com, always in the Data attribution popover (the free plan's required backlink); "via World News API", the publisher's domain and the article link on every card |
 | **InciWeb** (inciweb.wildfire.gov)                                    | Per-incident "InciWeb ↗" card links to official incident pages (narratives, evacuation/closure notices) | U.S. government public incident information. Links are matched best-effort by incident name and state, with incident page origin and update times checked on selection. Same-origin `/api/fire-perimeters/inciweb` routes cache the catalog for 1 hour and publication metadata for 30 minutes; linked pages remain InciWeb content | "Incident information: InciWeb (inciweb.wildfire.gov)" |
 | **FAA Special Use Airspace** (`services6.arcgis.com` FeatureServer `Special_Use_Airspace`) | Prohibited & Restricted Airspace layer: US prohibited (P) and restricted (R) special-use airspace polygons (not the UAS Facility Map or UAS flight restrictions), altitude limits from the `*_VAL`/`*_UOM`/`*_CODE` fields, times of use, and controlling agency | U.S. public domain (FAA aeronautical data published through the [FAA AIS Open Data portal](https://adds-faa.opendata.arcgis.com/)); fetched keyless through `/api/drone-airspace` (1-hour server cache). Informational only — not a substitute for official UAS flight-planning tools | "Prohibited & restricted airspace: FAA Special Use Airspace" |
 | **OpenFreeMap / OpenMapTiles** | Vector tiles | OpenStreetMap data under ODbL 1.0 | OpenFreeMap © OpenMapTiles |
@@ -220,6 +223,7 @@ The [Bhote Koshi event pack](public/events/bhote-koshi-2026/README.md), under `p
 | **Natural Earth physical regions** (1,046 land + 292 marine named polygons) | `natural_earth/`                  | **Public domain**                                                                                         | ✅ (no restrictions)                             | "Made with Natural Earth" (courtesy credit — not legally required)          |
 | **DataSF Analysis Neighborhoods** (41 SF neighborhood polygons)             | `neighborhoods/`                  | **PDDL 1.0** (public domain)                                                                              | ✅ (no restrictions)                             | "City & County of San Francisco — DataSF" (courtesy — not legally required) |
 | **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)          |
+| **Natural Earth disputed areas** (11 of the source's 99 features, hand-picked; [list](src/data/local_data/natural_earth/README.md#disputed-areas-disputed_areasjson)) | `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)                      |
 | **US Census Bureau places** (32,629 city, town and CDP polygons)            | `us_census_places/`               | **Public domain**                                                                                         | ✅ (no restrictions)                             | "U.S. Census Bureau" (courtesy — not legally required)                      |
 | **Who's On First neighborhoods** (61,441 polygons)                          | `wof_neighborhoods/`              | Per source: CC BY, ODC-By, Open Government licences, CC0, PDDL, public domain (folder `ATTRIBUTION.md`)   | ✅ (attribution)                                 | "Neighborhood boundaries: Who's On First and contributors"; per-source credits in the folder |