feat(links): surface source repo + Weblate links on site and in app

- site: set sourceURL (git.comunes.org/comunes/tane) and weblateURL
  (translate.comunes.org/projects/tane) — activates footer + collaborate links
- app About screen: add 'Source code' and 'Help translate' link tiles
- i18n: add about.sourceCode / about.translate / about.translateSubtitle
  (en base + es/pt/fr/de/ast; ja falls back to base), regenerate slang
- docs: add TRANSLATIONS.md runbook for the Weblate app component + git
  token + slang-regeneration workflow

TRANSLATIONS.md

@@ -0,0 +1,87 @@
+# Translating Tane (Weblate)
+
+Runbook for the translation setup. Written so another agent (or a human) can
+reproduce it without prior context.
+
+Tane is translated on **[translate.comunes.org/projects/tane](https://translate.comunes.org/projects/tane/)**
+(a self-hosted **Weblate 5.x**, docker-compose at `/data/weblate` on host **tesla**).
+The links to the repo and to Weblate are shown both on the landing site
+(`site/config.toml` → `sourceURL`, `weblateURL`) and inside the app (About screen).
+
+## What is translatable
+
+| Surface | Files | Format | Base locale | Locales today |
+|---|---|---|---|---|
+| **App** (`app` component) | `apps/app_seeds/lib/i18n/*.i18n.json` | JSON **nested** (slang, `{param}` placeholders) | `en` | en, es, pt, fr, de, ast, ja |
+| **Site** (deferred) | `site/i18n/*.toml` | Hugo TOML | `en` | en, es |
+
+Only source strings live in git; app strings use `slang`, so `strings.g.dart` /
+`strings_*.g.dart` are **generated** (see the slang caveat below).
+
+## Git connection
+
+- Repo: `https://git.comunes.org/comunes/tane.git`, branch **`main`** (private
+  Gitea/Forgejo behind Cloudflare).
+- Weblate must use **HTTPS + an access token** — SSH port 22 is not reachable
+  through Cloudflare, so the stored `Comunes Translations` SSH key is unusable here.
+- Repository URL in Weblate:
+  `https://<user>:<token>@git.comunes.org/comunes/tane.git`
+  where `<token>` is a git.comunes.org access token with **read + write** on
+  `comunes/tane` (Weblate pushes translations back). Generate it in Gitea/Forgejo
+  → Settings → Applications.
+
+## The `app` component (create once)
+
+The `tane` project already exists on Weblate. Add a component (admin UI
+*Add new translation component*, or `docker exec weblate-weblate-1 weblate shell`):
+
+| Field | Value |
+|---|---|
+| Project | `tane` |
+| Name / slug | `app` |
+| Source code repository | `https://<user>:<token>@git.comunes.org/comunes/tane.git` |
+| Repository branch | `main` |
+| File mask | `apps/app_seeds/lib/i18n/*.i18n.json` |
+| Monolingual base language file | `apps/app_seeds/lib/i18n/en.i18n.json` |
+| Template for new translations | `apps/app_seeds/lib/i18n/en.i18n.json` |
+| File format | **JSON nested structure** (`json-nested`) — not flat `json` |
+| Source language | English (`en`) |
+
+Weblate auto-discovers the existing locales from the mask. Leave push-on-commit on
+so translations flow back to `main`.
+
+Sanity check after creating it:
+```sh
+docker exec weblate-weblate-1 weblate shell -c \
+  'from weblate.trans.models import Project; \
+   print(Project.objects.get(slug="tane").component_set.count())'   # expect 1
+```
+Then edit a test string in the UI and confirm a commit lands on
+`git.comunes.org/comunes/tane` (`main`) — that validates the token has write.
+
+## slang regeneration caveat (important)
+
+Weblate only edits the `*.i18n.json` sources. The committed `strings.g.dart` /
+`strings_*.g.dart` are generated and go **stale** on every Weblate commit, and
+there is no CI to regenerate them. Before a release, a maintainer must:
+
+```sh
+git pull
+cd apps/app_seeds && dart run slang     # regenerates strings*.g.dart
+cd ../.. && dart analyze                 # workspace gate
+git add -A && git commit -m "chore(i18n): regenerate slang after Weblate sync"
+```
+
+(Adding a new source string manually? Same steps — edit `en.i18n.json` first, then
+regenerate. `fallback_strategy: base_locale` means locales missing a key show the
+English text until translators fill it in.)
+
+## Site component — deferred
+
+Weblate 5.x has no native Hugo-TOML format, and the site has only EN/ES (~3 KB).
+Two options, decide later:
+- (a) Switch Hugo i18n to a Weblate-supported format (Hugo also reads
+  `i18n/*.json` / `*.yaml`), then add a matching `site` component.
+- (b) Keep translating the two `site/i18n/*.toml` files by hand.
+
+For now the site is translated manually; only the `app` component is on Weblate.

apps/app_seeds/lib/i18n/ast.i18n.json

@@ -146,6 +146,9 @@
     "license": "Llicencia",
     "licenseValue": "AGPL-3.0",
     "website": "Sitiu web",
+  "sourceCode": "Códigu fonte",
+  "translate": "Ayuda a traducir",
+  "translateSubtitle": "Ayuda a traer Tane a la to llingua",
     "openSourceLicenses": "Llicencies de códigu abiertu",
     "openSourceLicensesSubtitle": "Biblioteques de terceros y les sos llicencies",
     "copyright": "© {years} Asociación Comunes, baxo AGPLv3"

apps/app_seeds/lib/i18n/de.i18n.json

@@ -147,6 +147,9 @@
     "license": "Lizenz",
     "licenseValue": "AGPL-3.0",
     "website": "Webseite",
+  "sourceCode": "Quellcode",
+  "translate": "Beim Übersetzen helfen",
+  "translateSubtitle": "Hilf, Tane in deine Sprache zu bringen",
     "openSourceLicenses": "Open-Source-Lizenzen",
     "openSourceLicensesSubtitle": "Bibliotheken von Drittanbietern und ihre Lizenzen",
     "copyright": "© {years} Comunes Association, unter AGPLv3"

apps/app_seeds/lib/i18n/en.i18n.json

@@ -147,6 +147,9 @@
   "license": "License",
   "licenseValue": "AGPL-3.0",
   "website": "Website",
+  "sourceCode": "Source code",
+  "translate": "Help translate",
+  "translateSubtitle": "Help bring Tane to your language",
   "openSourceLicenses": "Open-source licenses",
   "openSourceLicensesSubtitle": "Third-party libraries and their licenses",
   "copyright": "© {years} Comunes Association, under AGPLv3"

apps/app_seeds/lib/i18n/es.i18n.json

@@ -146,6 +146,9 @@
   "license": "Licencia",
   "licenseValue": "AGPL-3.0",
   "website": "Sitio web",
+  "sourceCode": "Código fuente",
+  "translate": "Ayuda a traducir",
+  "translateSubtitle": "Ayuda a traer Tane a tu idioma",
   "openSourceLicenses": "Licencias de código abierto",
   "openSourceLicensesSubtitle": "Bibliotecas de terceros y sus licencias",
   "copyright": "© {years} Asociación Comunes, bajo AGPLv3"

apps/app_seeds/lib/i18n/fr.i18n.json

@@ -147,6 +147,9 @@
     "license": "Licence",
     "licenseValue": "AGPL-3.0",
     "website": "Site web",
+  "sourceCode": "Code source",
+  "translate": "Aider à traduire",
+  "translateSubtitle": "Aidez à traduire Tane dans votre langue",
     "openSourceLicenses": "Licences open source",
     "openSourceLicensesSubtitle": "Bibliothèques tiers et leurs licences",
     "copyright": "© {years} Association Comunes, sous AGPLv3"

apps/app_seeds/lib/i18n/pt.i18n.json

@@ -147,6 +147,9 @@
     "license": "Licença",
     "licenseValue": "AGPL-3.0",
     "website": "Sítio web",
+  "sourceCode": "Código-fonte",
+  "translate": "Ajuda a traduzir",
+  "translateSubtitle": "Ajuda a trazer o Tane para o teu idioma",
     "openSourceLicenses": "Licenças de código aberto",
     "openSourceLicensesSubtitle": "Bibliotecas de terceiros e as suas licenças",
     "copyright": "© {years} Associação Comunes, sob AGPLv3"

apps/app_seeds/lib/i18n/strings.g.dart

@@ -4,9 +4,9 @@
 /// To regenerate, run: `dart run slang`
 ///
 /// Locales: 7
-/// Strings: 3454 (493 per locale)
+/// Strings: 3472 (496 per locale)
 ///
-/// Built on 2026-07-15 at 13:17 UTC
+/// Built on 2026-07-15 at 17:09 UTC
 
 // coverage:ignore-file
 // ignore_for_file: type=lint, unused_import

apps/app_seeds/lib/i18n/strings_ast.g.dart

@@ -328,6 +328,9 @@ class _Translations$about$ast extends Translations$about$en {
 	@override String get license => 'Llicencia';
 	@override String get licenseValue => 'AGPL-3.0';
 	@override String get website => 'Sitiu web';
+	@override String get sourceCode => 'Códigu fonte';
+	@override String get translate => 'Ayuda a traducir';
+	@override String get translateSubtitle => 'Ayuda a traer Tane a la to llingua';
 	@override String get openSourceLicenses => 'Llicencies de códigu abiertu';
 	@override String get openSourceLicensesSubtitle => 'Biblioteques de terceros y les sos llicencies';
 	@override String copyright({required Object years}) => '© ${years} Asociación Comunes, baxo AGPLv3';
@@ -1536,6 +1539,9 @@ extension on TranslationsAst {
 			'about.license' => 'Llicencia',
 			'about.licenseValue' => 'AGPL-3.0',
 			'about.website' => 'Sitiu web',
+			'about.sourceCode' => 'Códigu fonte',
+			'about.translate' => 'Ayuda a traducir',
+			'about.translateSubtitle' => 'Ayuda a traer Tane a la to llingua',
 			'about.openSourceLicenses' => 'Llicencies de códigu abiertu',
 			'about.openSourceLicensesSubtitle' => 'Biblioteques de terceros y les sos llicencies',
 			'about.copyright' => ({required Object years}) => '© ${years} Asociación Comunes, baxo AGPLv3',
@@ -1923,11 +1929,11 @@ extension on TranslationsAst {
 			'handover.promiseReceived' => 'Voi devolver semiente',
 			'sale.title' => 'Ventes',
 			'sale.help' => 'Rexistra semilla vendida o mercada — dineru, Ğ1 o cualquier moneda. Un modelu aparte del regalu y del Plantare. Enxamás se cobra comisión poles semilles.',
+			_ => null,
+		} ?? switch (path) {
 			'sale.add' => 'Rexistrar venta',
 			'sale.empty' => 'Entá nun hai ventes. Anota equí lo que vendes o merques.',
 			'sale.iSold' => 'Vendí',
-			_ => null,
-		} ?? switch (path) {
 			'sale.iBought' => 'Mercué',
 			'sale.direction' => '¿Vendes o merques?',
 			'sale.counterparty' => '¿Con quién?',

apps/app_seeds/lib/i18n/strings_de.g.dart

@@ -329,6 +329,9 @@ class _Translations$about$de extends Translations$about$en {
 	@override String get license => 'Lizenz';
 	@override String get licenseValue => 'AGPL-3.0';
 	@override String get website => 'Webseite';
+	@override String get sourceCode => 'Quellcode';
+	@override String get translate => 'Beim Übersetzen helfen';
+	@override String get translateSubtitle => 'Hilf, Tane in deine Sprache zu bringen';
 	@override String get openSourceLicenses => 'Open-Source-Lizenzen';
 	@override String get openSourceLicensesSubtitle => 'Bibliotheken von Drittanbietern und ihre Lizenzen';
 	@override String copyright({required Object years}) => '© ${years} Comunes Association, unter AGPLv3';
@@ -1533,6 +1536,9 @@ extension on TranslationsDe {
 			'about.license' => 'Lizenz',
 			'about.licenseValue' => 'AGPL-3.0',
 			'about.website' => 'Webseite',
+			'about.sourceCode' => 'Quellcode',
+			'about.translate' => 'Beim Übersetzen helfen',
+			'about.translateSubtitle' => 'Hilf, Tane in deine Sprache zu bringen',
 			'about.openSourceLicenses' => 'Open-Source-Lizenzen',
 			'about.openSourceLicensesSubtitle' => 'Bibliotheken von Drittanbietern und ihre Lizenzen',
 			'about.copyright' => ({required Object years}) => '© ${years} Comunes Association, unter AGPLv3',
@@ -1919,11 +1925,11 @@ extension on TranslationsDe {
 			'sale.empty' => 'Noch keine Verkäufe. Notiere hier, was du verkaufst oder kaufst.',
 			'sale.iSold' => 'Ich verkaufte',
 			'sale.iBought' => 'Ich kaufte',
+			_ => null,
+		} ?? switch (path) {
 			'sale.direction' => 'Verkauft oder gekauft?',
 			'sale.counterparty' => 'Mit wem?',
 			'sale.counterpartyHint' => 'Eine Person oder ein Kollektiv (optional)',
-			_ => null,
-		} ?? switch (path) {
 			'sale.amount' => 'Betrag',
 			'sale.currency' => 'Währung',
 			'sale.currencyHint' => '€, Ğ1, Stunden… (optional)',

apps/app_seeds/lib/i18n/strings_en.g.dart

@@ -577,6 +577,15 @@ class Translations$about$en {
 	/// en: 'Website'
 	String get website => 'Website';
 
+	/// en: 'Source code'
+	String get sourceCode => 'Source code';
+
+	/// en: 'Help translate'
+	String get translate => 'Help translate';
+
+	/// en: 'Help bring Tane to your language'
+	String get translateSubtitle => 'Help bring Tane to your language';
+
 	/// en: 'Open-source licenses'
 	String get openSourceLicenses => 'Open-source licenses';
 
@@ -2721,6 +2730,9 @@ extension on Translations {
 			'about.license' => 'License',
 			'about.licenseValue' => 'AGPL-3.0',
 			'about.website' => 'Website',
+			'about.sourceCode' => 'Source code',
+			'about.translate' => 'Help translate',
+			'about.translateSubtitle' => 'Help bring Tane to your language',
 			'about.openSourceLicenses' => 'Open-source licenses',
 			'about.openSourceLicensesSubtitle' => 'Third-party libraries and their licenses',
 			'about.copyright' => ({required Object years}) => '© ${years} Comunes Association, under AGPLv3',
@@ -3107,11 +3119,11 @@ extension on Translations {
 			'plantare.returnSimilar' => 'A similar amount of seed',
 			'plantare.returnSimilarNote' => 'open-pollinated · non-GMO · organically grown',
 			'plantare.returnWork' => 'Some hours of work',
+			_ => null,
+		} ?? switch (path) {
 			'plantare.returnOther' => 'Something else',
 			'plantare.workHoursLabel' => 'How many hours?',
 			'plantare.proposalsSection' => 'Waiting for your reply',
-			_ => null,
-		} ?? switch (path) {
 			'plantare.incomingFrom' => ({required Object name}) => '${name} proposes a Plantaré',
 			'plantare.accept' => 'Accept & sign',
 			'plantare.declineAction' => 'Decline',

apps/app_seeds/lib/i18n/strings_es.g.dart

@@ -328,6 +328,9 @@ class _Translations$about$es extends Translations$about$en {
 	@override String get license => 'Licencia';
 	@override String get licenseValue => 'AGPL-3.0';
 	@override String get website => 'Sitio web';
+	@override String get sourceCode => 'Código fuente';
+	@override String get translate => 'Ayuda a traducir';
+	@override String get translateSubtitle => 'Ayuda a traer Tane a tu idioma';
 	@override String get openSourceLicenses => 'Licencias de código abierto';
 	@override String get openSourceLicensesSubtitle => 'Bibliotecas de terceros y sus licencias';
 	@override String copyright({required Object years}) => '© ${years} Asociación Comunes, bajo AGPLv3';
@@ -1561,6 +1564,9 @@ extension on TranslationsEs {
 			'about.license' => 'Licencia',
 			'about.licenseValue' => 'AGPL-3.0',
 			'about.website' => 'Sitio web',
+			'about.sourceCode' => 'Código fuente',
+			'about.translate' => 'Ayuda a traducir',
+			'about.translateSubtitle' => 'Ayuda a traer Tane a tu idioma',
 			'about.openSourceLicenses' => 'Licencias de código abierto',
 			'about.openSourceLicensesSubtitle' => 'Bibliotecas de terceros y sus licencias',
 			'about.copyright' => ({required Object years}) => '© ${years} Asociación Comunes, bajo AGPLv3',
@@ -1948,11 +1954,11 @@ extension on TranslationsEs {
 			'plantare.returnSimilarNote' => 'polinización abierta · no transgénica · cultivada en ecológico',
 			'plantare.returnWork' => 'Unas horas de trabajo',
 			'plantare.returnOther' => 'Otra cosa',
+			_ => null,
+		} ?? switch (path) {
 			'plantare.workHoursLabel' => '¿Cuántas horas?',
 			'plantare.proposalsSection' => 'Esperando tu respuesta',
 			'plantare.incomingFrom' => ({required Object name}) => '${name} te propone un Plantaré',
-			_ => null,
-		} ?? switch (path) {
 			'plantare.accept' => 'Aceptar y firmar',
 			'plantare.declineAction' => 'Rechazar',
 			'plantare.declineReasonHint' => 'Motivo (opcional)',

apps/app_seeds/lib/i18n/strings_fr.g.dart

@@ -329,6 +329,9 @@ class _Translations$about$fr extends Translations$about$en {
 	@override String get license => 'Licence';
 	@override String get licenseValue => 'AGPL-3.0';
 	@override String get website => 'Site web';
+	@override String get sourceCode => 'Code source';
+	@override String get translate => 'Aider à traduire';
+	@override String get translateSubtitle => 'Aidez à traduire Tane dans votre langue';
 	@override String get openSourceLicenses => 'Licences open source';
 	@override String get openSourceLicensesSubtitle => 'Bibliothèques tiers et leurs licences';
 	@override String copyright({required Object years}) => '© ${years} Association Comunes, sous AGPLv3';
@@ -1533,6 +1536,9 @@ extension on TranslationsFr {
 			'about.license' => 'Licence',
 			'about.licenseValue' => 'AGPL-3.0',
 			'about.website' => 'Site web',
+			'about.sourceCode' => 'Code source',
+			'about.translate' => 'Aider à traduire',
+			'about.translateSubtitle' => 'Aidez à traduire Tane dans votre langue',
 			'about.openSourceLicenses' => 'Licences open source',
 			'about.openSourceLicensesSubtitle' => 'Bibliothèques tiers et leurs licences',
 			'about.copyright' => ({required Object years}) => '© ${years} Association Comunes, sous AGPLv3',
@@ -1919,11 +1925,11 @@ extension on TranslationsFr {
 			'sale.empty' => 'Pas encore de ventes. Notez ici ce que vous vendez ou achetez.',
 			'sale.iSold' => 'J\'ai vendu',
 			'sale.iBought' => 'J\'ai acheté',
+			_ => null,
+		} ?? switch (path) {
 			'sale.direction' => 'Vendu ou acheté ?',
 			'sale.counterparty' => 'Avec qui ?',
 			'sale.counterpartyHint' => 'Une personne ou un collectif (optionnel)',
-			_ => null,
-		} ?? switch (path) {
 			'sale.amount' => 'Montant',
 			'sale.currency' => 'Monnaie',
 			'sale.currencyHint' => '€, Ğ1, heures… (optionnel)',

apps/app_seeds/lib/i18n/strings_pt.g.dart

@@ -329,6 +329,9 @@ class _Translations$about$pt extends Translations$about$en {
 	@override String get license => 'Licença';
 	@override String get licenseValue => 'AGPL-3.0';
 	@override String get website => 'Sítio web';
+	@override String get sourceCode => 'Código-fonte';
+	@override String get translate => 'Ajuda a traduzir';
+	@override String get translateSubtitle => 'Ajuda a trazer o Tane para o teu idioma';
 	@override String get openSourceLicenses => 'Licenças de código aberto';
 	@override String get openSourceLicensesSubtitle => 'Bibliotecas de terceiros e as suas licenças';
 	@override String copyright({required Object years}) => '© ${years} Associação Comunes, sob AGPLv3';
@@ -1536,6 +1539,9 @@ extension on TranslationsPt {
 			'about.license' => 'Licença',
 			'about.licenseValue' => 'AGPL-3.0',
 			'about.website' => 'Sítio web',
+			'about.sourceCode' => 'Código-fonte',
+			'about.translate' => 'Ajuda a traduzir',
+			'about.translateSubtitle' => 'Ajuda a trazer o Tane para o teu idioma',
 			'about.openSourceLicenses' => 'Licenças de código aberto',
 			'about.openSourceLicensesSubtitle' => 'Bibliotecas de terceiros e as suas licenças',
 			'about.copyright' => ({required Object years}) => '© ${years} Associação Comunes, sob AGPLv3',
@@ -1922,11 +1928,11 @@ extension on TranslationsPt {
 			'sale.title' => 'Vendas',
 			'sale.help' => 'Regista semente vendida ou comprada — dinheiro, Ğ1 ou qualquer moeda. Um modelo separado do presente e do Plantare. Nunca se cobra comissão pelas sementes.',
 			'sale.add' => 'Registar venda',
+			_ => null,
+		} ?? switch (path) {
 			'sale.empty' => 'Ainda não há vendas. Anota aqui o que vendes ou compras.',
 			'sale.iSold' => 'Vendi',
 			'sale.iBought' => 'Comprei',
-			_ => null,
-		} ?? switch (path) {
 			'sale.direction' => 'Vendes ou compras?',
 			'sale.counterparty' => 'Com quem?',
 			'sale.counterpartyHint' => 'Uma pessoa ou um coletivo (opcional)',

apps/app_seeds/lib/ui/about_screen.dart

@@ -9,6 +9,12 @@ import 'theme.dart';
 /// The app's public website. Shown as a tappable row in [AboutScreen].
 const String _websiteUrl = 'https://tane.comunes.org';
 
+/// The public source repository (AGPL). Shown as a tappable row in [AboutScreen].
+const String _sourceUrl = 'https://git.comunes.org/comunes/tane';
+
+/// The translation platform where anyone can help translate Tane.
+const String _translateUrl = 'https://translate.comunes.org/projects/tane/';
+
 /// The year Tane's copyright starts. Ğ1nkgo uses its own first year (2023);
 /// Tane's is 2026.
 const int _copyrightStartYear = 2026;
@@ -69,6 +75,24 @@ class AboutScreen extends StatelessWidget {
               mode: LaunchMode.externalApplication,
             ),
           ),
+          ListTile(
+            leading: const Icon(Icons.code, color: seedGreen),
+            title: Text(t.about.sourceCode),
+            subtitle: const Text(_sourceUrl),
+            onTap: () => launchUrl(
+              Uri.parse(_sourceUrl),
+              mode: LaunchMode.externalApplication,
+            ),
+          ),
+          ListTile(
+            leading: const Icon(Icons.translate, color: seedGreen),
+            title: Text(t.about.translate),
+            subtitle: Text(t.about.translateSubtitle),
+            onTap: () => launchUrl(
+              Uri.parse(_translateUrl),
+              mode: LaunchMode.externalApplication,
+            ),
+          ),
           ListTile(
             leading: const Icon(Icons.privacy_tip_outlined, color: seedGreen),
             title: Text(t.legal.title),

site/config.toml

@@ -17,8 +17,8 @@ enableGitInfo = false
   # Links rendered only when set, so nothing broken shows before they exist:
   playStoreURL = ""   # Google Play, once published
   fdroidURL = ""      # F-Droid, once published
-  sourceURL = ""      # public source repository (AGPL) — set when available
+  sourceURL = "https://git.comunes.org/comunes/tane"      # public source repository (AGPL)
-  weblateURL = ""     # translation platform — set when hosting is ready
+  weblateURL = "https://translate.comunes.org/projects/tane/"     # translation platform
 
 [languages]
   [languages.en]