i18n: add Swedish (sv)

Adds a complete Swedish catalog (2,961 messages) and registers sv in the locale list, catalogs, language picker and package boundaries. Browsers set to Swedish get it at once; ?lang=sv or the language picker choose it elsewhere. Numbers and dates come out Swedish from Intl. - docs/translations/sv.md: style (imperative without a pronoun, closed compounds, decimal comma, space before units and %) and the glossary. - Entries that stay identical to English on purpose (codes such as HDG and FOV, product, place and source names) are listed under sv in same-as-english.json. - The picker-order test places Svenska after Português. - docs/CURRENT-STATE.md and docs/TRANSLATORS.md list the new language. The translation comes from God's Eye View Sverige, a Swedish fork, and was brought up to date with main (wildlife sightings, event age filter, traffic styles and the rest). Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-11-12 22:32:19 +00:00 · 2026-11-08 13:31:12 +01:00
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@@ -4285,7 +4285,7 @@ test:track` 43 tracking invariants · headless QA harnesses under

 ### Interface localization (October 2026)

-Shipped locales: **en** (source and fallback), **ar**, **de**, **es**, **fr**, **it**, **ja**, **pt** (Brazilian Portuguese), **ru**, **uk**, **zh-CN** and **zh-Hant**. The code lives in
+Shipped locales: **en** (source and fallback), **ar**, **de**, **es**, **fr**, **it**, **ja**, **pt** (Brazilian Portuguese), **ru**, **sv**, **uk**, **zh-CN** and **zh-Hant**. The code lives in
 `src/i18n/`. How to mark UI text: [`docs/I18N.md`](./I18N.md); translator workflow:
 [`docs/TRANSLATORS.md`](./TRANSLATORS.md).

@@ -1,6 +1,6 @@
 # Translating God's Eye View

-Shipped languages: **English** (source and fallback), **Arabic** (`ar`), **German** (`de`), **Spanish** (`es`), **French** (`fr`), **Italian** (`it`), **Japanese** (`ja`), **Brazilian Portuguese** (`pt`), **Russian** (`ru`), **Ukrainian** (`uk`), **Simplified Chinese** (`zh-CN`) and **Traditional Chinese** (`zh-Hant`).
+Shipped languages: **English** (source and fallback), **Arabic** (`ar`), **German** (`de`), **Spanish** (`es`), **French** (`fr`), **Italian** (`it`), **Japanese** (`ja`), **Brazilian Portuguese** (`pt`), **Russian** (`ru`), **Ukrainian** (`uk`), **Simplified Chinese** (`zh-CN`), **Traditional Chinese** (`zh-Hant`) and **Swedish** (`sv`).

 ## How it works

@@ -63,4 +63,4 @@ These are contracts, not copy: layer ids and registry keys, status enums and oth

 ## Language notes

-Each language keeps its glossary, plural forms, units and style in its own file, `docs/translations/<code>.md`: [Arabic](./translations/ar.md), [German](./translations/de.md), [Spanish](./translations/es.md), [French](./translations/fr.md), [Italian](./translations/it.md), [Japanese](./translations/ja.md), [Brazilian Portuguese](./translations/pt.md), [Russian](./translations/ru.md), [Ukrainian](./translations/uk.md), [Simplified Chinese](./translations/zh-CN.md), [Traditional Chinese](./translations/zh-Hant.md). Read it before translating, and add a term there when you settle on one.
+Each language keeps its glossary, plural forms, units and style in its own file, `docs/translations/<code>.md`: [Arabic](./translations/ar.md), [German](./translations/de.md), [Spanish](./translations/es.md), [French](./translations/fr.md), [Italian](./translations/it.md), [Japanese](./translations/ja.md), [Brazilian Portuguese](./translations/pt.md), [Russian](./translations/ru.md), [Ukrainian](./translations/uk.md), [Simplified Chinese](./translations/zh-CN.md), [Traditional Chinese](./translations/zh-Hant.md), [Swedish](./translations/sv.md). Read it before translating, and add a term there when you settle on one.
@@ -0,0 +1,84 @@
+# Swedish (`sv`)
+
+Catalog: `src/i18n/locales/sv.json`. General rules: [TRANSLATORS.md](../TRANSLATORS.md).
+
+Translation source: [God's Eye View Sverige](https://github.com/Kajjan7610/Gods-view-sweden) by Kaj Obst, November 2026.
+
+## Style
+
+- Standard Swedish as in Swedish software and on Swedish authority sites (SMHI, Trafikverket, Polisen).
+- Actions and hints use the imperative without a pronoun: «Försök igen», «Klicka på en kamera för att aktivera den», «Välj en tagning först», «Tillåt mikrofonen och försök igen». Avoid «du»/«ni»; "your" becomes «egen» or is left out: «Egen RTL-SDR-mottagare», «Stationen ser din IP-adress» only where a person must be addressed.
+- Sentence case, not Title Case: "Live Flights" → «Liveflyg», "Provider Settings" → «Leverantörsinställningar». UPPERCASE English stays UPPERCASE: «LIVEDATA AV», NOT AN ALL-CLEAR → «INTE FARA ÖVER».
+- Compounds are written as one word, with a hyphen after a name, code or abbreviation: «datalager», «väderrutor», «TomTom-nyckel», «AIS-fartyg», «Street View-reserv». Never split a compound with a space.
+- Short labels, chips and HUD readouts stay short; use a standard abbreviation with a period over a wrapped line: RÄCKV., HAST., NEDERB., ÖVR., MEDD., FÖRST., JMF., KAL.
+- The avionics codes HDG, BRG, CRS, DEST, SPD, ALT, GS, TRK, V/S, FOV and SQUAWK stay in English, as in the cockpit. Words in a sentence are translated: heading → «kurs», bearing → «bäring», range → «räckvidd».
+- A dash between clauses is a spaced en dash « – ». Quotes are ”…” (Swedish closing quotes on both sides).
+- Status and waiting messages: «Väntar på uppdatering», «Laddar …». Reasons after a dash stay lower case: «Scenen sparades inte – projektet är större än 5 MiB».
+- A layer named in a sentence takes its panel name in quotes: «Lagret ”Liveflyg” är inte aktiverat».
+- Rolling windows say their length: LAST YEAR → «SENASTE 12 MÅN.», LAST MONTH → «SENASTE 30 DAGARNA».
+- Keyboard keys: Mellanslag, Backsteg, Skift; Esc, Enter, Tab and letter keys stay.
+- Decimal comma in fixed text: «M4,4», «28,2710° N». Thousands separator is a space: «1 000 km». Formatted numbers come from `Intl` and are already Swedish.
+- Units: km, m, km/h, m/s, kn (knop), ft (fot), hPa, MW, h, min, s, d (dygn, in short readouts); in UPPERCASE text KM, KM/H, KN, FT, MIN, H, D. A space between number and unit, also before %: «{value} m», «{count} min», «50 %». `°` sticks to the number.
+- "ago": «för {count} min sedan», short «{count} min sedan». When a placeholder already holds a localized "ago" text (`{age}`, `{ago}`), do not add «sedan» again.
+- Compass points use O for öst and V for väst, as SMHI does: N, NNO, NO, ONO, O, OSO, SO, SSO, S, SSV, SV, VSV, V, VNV, NV, NNV; hemisphere letters N, S, O, V.
+- Routing: «Sväng {direction} in på {road}», «Fortsätt {direction}», «Ta {exit} avfarten» with ordinals «2:a», «3:e».
+
+## Plurals
+
+A `tn()` entry needs two forms. `Intl.PluralRules('sv')` picks:
+
+| Form    | Counts                      | Example     |
+| ------- | --------------------------- | ----------- |
+| `one`   | 1                           | 1 kamera    |
+| `other` | everything else: 0, 2, 1,5… | 3 kameror   |
+
+Abbreviated units and codes do not change: «{count} MEDD.», «{count} HÖRDA».
+
+## Glossary
+
+| English                                        | Svenska                                                         |
+| ---------------------------------------------- | --------------------------------------------------------------- |
+| layer / data layer                             | lager / datalager                                               |
+| feed / source / data source                    | flöde / källa / datakälla                                       |
+| LIVE (status) / live data                      | LIVE / livedata                                                 |
+| SIMULATED                                      | SIMULERAT                                                       |
+| stale / degraded / unavailable                 | inaktuell / begränsad / otillgänglig                            |
+| retry / retrying / retrying slowly             | nytt försök / försöker igen / försöker igen med längre intervall |
+| fallback                                       | reserv                                                          |
+| key (API key) / POWER UP / POWERED UP          | nyckel / KOPPLA PÅ / PÅKOPPLAD                                  |
+| Provider Settings                              | Leverantörsinställningar                                        |
+| ON / OFF (state chips)                         | PÅ / AV                                                         |
+| enable / disable                               | aktivera / inaktivera                                           |
+| globe / map / map source / basemap             | glob / karta / kartkälla / bakgrundskarta                       |
+| aircraft / flight / military flights           | luftfartyg (short labels: flygplan) / flygning / militärflyg    |
+| vessel, ship                                   | fartyg                                                          |
+| satellite / shell (Starlink)                   | satellit / skal                                                 |
+| launch (rocket) / launch site / space mission  | uppskjutning / uppskjutningsplats / rymduppdrag                 |
+| contact / tracking                             | kontakt / följning                                              |
+| installation / site                            | anläggning / plats                                              |
+| camera / CCTV camera                           | kamera / CCTV-kamera                                            |
+| earthquake / active fire / fire perimeter      | jordbävning / aktiv brand / brandgräns                          |
+| cyclone / advisory (NHC) / cone                | cyklon / bulletin / kon                                         |
+| radio station / broadcast FM                   | radiostation / FM-radio                                         |
+| road / traffic flow                            | väg / trafikflöde                                               |
+| transit / bike share                           | kollektivtrafik / hyrcyklar                                     |
+| scene / shot / capture shot / camera move      | scen / tagning / spara tagning / kameraåkning                   |
+| anchor / data pack / bundle                    | ankare / datapaket / paket                                      |
+| briefing / panel / dock                        | genomgång / panel / docka                                       |
+| preset / visual preset                         | förval / visuellt förval                                        |
+| Scope (circular viewport mask) / keyhole       | Scope / nyckelhål                                               |
+| overlay / detection overlay                    | överlägg / detekteringsöverlägg                                 |
+| Clean UI                                       | Rent gränssnitt                                                 |
+| Night vision / Thermal / Snow (styles)         | Mörkerseende / Värmekamera / Snö                                |
+| heading / altitude / ground speed              | kurs / höjd / markfart                                          |
+| RANGE / PITCH / HGT (CCTV calibration chips)   | RÄCKV. / LUTN. / HÖJD                                           |
+| PREV / NEXT / RESUME                           | FÖRRA / NÄSTA / FORTSÄTT                                        |
+| nearest (spatial)                              | närmaste                                                        |
+| expand / collapse                              | fäll ut / fäll ihop                                             |
+| Street Level / Street View (Google)            | Gatunivå / Street View                                          |
+| Recent Imagery                                 | Senaste bilder                                                  |
+| voice (control) / voice session                | röststyrning / röstsession                                      |
+| click / tap / press a key                      | klicka / tryck / tryck på tangenten                             |
+| card / label (on the map) / clear (layers)     | kort / etikett / stäng av                                       |
+| frame (weather, video) / image                 | bildruta / bild                                                 |
+| road condition / incident / roadwork           | väglag / händelse / vägarbete                                   |