fix(news): keep World News API's own category for a country's news

The bundled rules read fighting and crises; in everyday headlines their
words mislead ("Kazakhstan Advances in Global Digital Rankings" read as
ground fighting). A country's own stories in Local now keep World News
API's category (politics, business, else other) and carry no severity.
Fighting in the area still shows through the Conflicts reports placed
there.

DATA_SOURCES.md

@@ -42,7 +42,7 @@ How to read this:
 | **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 |
+| **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. Each story keeps World News API's own category (politics, business, else other) with no severity of its own; 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 |