feat(frontend): Light-i18n + Org-Sprache durch /auth/me

Backend:
- UserMeResponse um output_language (de | en) erweitert.
- /auth/me liefert die Org-Sprache aus organization_settings.

Frontend:
- Neu: static/js/i18n.js mit T(key)-Helper, I18N.load(lang) und
  applyDom() ueber data-i18n + data-i18n-attr.
- Neu: static/i18n/de.json + en.json (sichtbare Bereiche: Sidebar,
  Header, Modal-Titel, Faktencheck-Status, Refresh-Hinweise).
- dashboard.html: i18n.js Script-Tag vor api.js, data-i18n auf den
  prominenten Strings (Abmelden, + Neuer Fall, Alle/Eigene, Sidebar-
  Sektionen, Bericht exportieren, Faktencheck-Tab, Lage anlegen).
  Tutorial.init() entfernt aus DOMContentLoaded.
- components.js: factCheckLabels/Tooltips/ChipLabels als Getter ueber
  T() mit DE-Fallbacks.
- app.js: vor Setup wird I18N.load(user.output_language) aufgerufen und
  applyDom() ausgefuehrt. Tutorial.init() laeuft nur bei lang === de.

Phase 6 von 8 (eng_demo / Org-Sprache).

src/models.py

@@ -43,6 +43,7 @@ class UserMeResponse(BaseModel):
     credits_remaining: Optional[int] = None
     credits_percent_used: Optional[float] = None
     is_global_admin: bool = False
+    output_language: str = "de"
 
 
 # Incidents (Lagen)

src/routers/auth.py

@@ -216,6 +216,12 @@ async def get_me(
     if _staging_mode():
         is_global_admin_response = False
 
+    # Org-Sprache fuer Frontend-i18n
+    output_language_iso = "de"
+    if current_user.get("tenant_id"):
+        from services.org_settings import get_org_language
+        output_language_iso = await get_org_language(db, current_user["tenant_id"])
+
     return UserMeResponse(
         id=current_user["id"],
         username=current_user["username"],
@@ -233,6 +239,7 @@ async def get_me(
         read_only_reason=license_info.get("read_only_reason"),
         unlimited_budget=unlimited_budget,
         is_global_admin=is_global_admin_response,
+        output_language=output_language_iso,
     )
 
 

src/static/dashboard.html

@@ -80,25 +80,25 @@
                     </div>
                 </div>
                 <div class="header-license-warning" id="header-license-warning"></div>
-                <button class="btn btn-secondary btn-small" id="logout-btn">Abmelden</button>
+                <button class="btn btn-secondary btn-small" id="logout-btn" data-i18n="header.logout">Abmelden</button>
             </div>
         </header>
 
         <!-- Sidebar -->
         <nav class="sidebar" aria-label="Seitenleiste">
             <div class="sidebar-section">
-                <button class="btn btn-primary btn-full btn-small" id="new-incident-btn" style="margin-bottom:6px;">+ Neuer Fall</button>
+                <button class="btn btn-primary btn-full btn-small" id="new-incident-btn" style="margin-bottom:6px;" data-i18n="header.new_incident">+ Neuer Fall</button>
             </div>
 
             <div class="sidebar-filter">
-                <button class="sidebar-filter-btn active" data-filter="all" onclick="App.setSidebarFilter('all')" aria-pressed="true">Alle</button>
-                <button class="sidebar-filter-btn" data-filter="mine" onclick="App.setSidebarFilter('mine')" aria-pressed="false">Eigene</button>
+                <button class="sidebar-filter-btn active" data-filter="all" onclick="App.setSidebarFilter('all')" aria-pressed="true" data-i18n="filter.all">Alle</button>
+                <button class="sidebar-filter-btn" data-filter="mine" onclick="App.setSidebarFilter('mine')" aria-pressed="false" data-i18n="filter.own">Eigene</button>
             </div>
 
             <div class="sidebar-section">
                 <h2 class="sidebar-section-title collapsible" onclick="App.toggleSidebarSection('active-incidents')" role="button" tabindex="0" aria-expanded="true">
                     <span class="sidebar-chevron" id="chevron-active-incidents" aria-hidden="true">&#9662;</span>
-                    Live-Monitoring
+                    <span data-i18n="sidebar.live_monitoring">Live-Monitoring</span>
                     <span class="sidebar-section-count" id="count-active-incidents"></span>
                 </h2>
                 <div id="active-incidents" aria-live="polite"></div>
@@ -107,7 +107,7 @@
             <div class="sidebar-section">
                 <h2 class="sidebar-section-title collapsible" onclick="App.toggleSidebarSection('active-research')" role="button" tabindex="0" aria-expanded="true">
                     <span class="sidebar-chevron" id="chevron-active-research" aria-hidden="true">&#9662;</span>
-                    Recherchen
+                    <span data-i18n="sidebar.research">Recherchen</span>
                     <span class="sidebar-section-count" id="count-active-research"></span>
                 </h2>
                 <div id="active-research" aria-live="polite"></div>
@@ -167,7 +167,7 @@
                         <div class="incident-header-actions">
                             <button class="btn btn-primary btn-small" id="refresh-btn">Aktualisieren</button>
                             <button class="btn btn-secondary btn-small" id="edit-incident-btn">Bearbeiten</button>
-                            <button class="btn btn-secondary btn-small" onclick="App.openExportModal()">Bericht exportieren</button>
+                            <button class="btn btn-secondary btn-small" onclick="App.openExportModal()" data-i18n="modal.export.title">Bericht exportieren</button>
                             <button class="btn btn-secondary btn-small" id="archive-incident-btn">Archivieren</button>
                             <button class="btn btn-danger btn-small" id="delete-incident-btn">Löschen</button>
                         </div>
@@ -208,7 +208,7 @@
                     <button class="tab-btn" data-tab="lagebild">Lagebild</button>
                     <button class="tab-btn" data-tab="timeline">Ereignis-Timeline</button>
                     <button class="tab-btn" data-tab="karte">Geografische Verteilung</button>
-                    <button class="tab-btn" data-tab="faktencheck">Faktencheck</button>
+                    <button class="tab-btn" data-tab="faktencheck" data-i18n="tile.factcheck">Faktencheck</button>
                     <button class="tab-btn" data-tab="pipeline">Analysepipeline</button>
                     <button class="tab-btn" data-tab="quellen">Quellenübersicht</button>
                 </div>
@@ -334,7 +334,7 @@
             <form id="new-incident-form">
                 <div class="modal-body">
                     <div class="form-group">
-                        <label for="inc-title">Titel des Vorfalls</label>
+                        <label for="inc-title" data-i18n="modal.new_incident.title_field">Titel des Vorfalls</label>
                         <input type="text" id="inc-title" required aria-required="true" placeholder="z.B. Explosion in Madrid">
                     </div>
                     <div class="form-group">
@@ -439,7 +439,7 @@
                 </div>
                 <div class="modal-footer">
                     <button type="button" class="btn btn-secondary" onclick="closeModal('modal-new')">Abbrechen</button>
-                    <button type="submit" class="btn btn-primary" id="modal-new-submit">Lage anlegen</button>
+                    <button type="submit" class="btn btn-primary" id="modal-new-submit" data-i18n="modal.new_incident.submit">Lage anlegen</button>
                 </div>
             </form>
         </div>
@@ -723,16 +723,17 @@
     <script src="https://cdn.jsdelivr.net/npm/d3@7/dist/d3.min.js"></script>
     <script src="/static/vendor/leaflet.js"></script>
     <script src="/static/vendor/leaflet.markercluster.js"></script>
+    <script src="/static/js/i18n.js?v=20260513a"></script>
     <script src="/static/js/api.js?v=20260423a"></script>
     <script src="/static/js/ws.js?v=20260316b"></script>
-    <script src="/static/js/components.js?v=20260427a"></script>
+    <script src="/static/js/components.js?v=20260513a"></script>
     <script src="/static/js/layout.js?v=20260316b"></script>
     <script src="/static/js/pipeline.js?v=20260501i"></script>
     <script src="/static/js/app.js?v=20260512a"></script>
     <script src="/static/js/cluster-data.js?v=20260322f"></script>
     <script src="/static/js/tutorial.js?v=20260316z"></script>
     <script src="/static/js/chat.js?v=20260422a"></script>
-    <script>document.addEventListener("DOMContentLoaded",function(){Chat.init();Tutorial.init()});</script>
+    <script>document.addEventListener("DOMContentLoaded",function(){Chat.init();/* Tutorial.init() wird in App.init() nach Sprachwahl aufgerufen, damit es bei englischen Orgs unterdrueckt werden kann */});</script>
 
     <!-- Map Fullscreen Overlay -->
     <div class="map-fullscreen-overlay" id="map-fullscreen-overlay">

src/static/i18n/de.json

@@ -0,0 +1,64 @@
+{
+  "sidebar.live_monitoring": "Live-Monitoring",
+  "sidebar.research": "Recherchen",
+  "sidebar.empty": "Keine Lagen vorhanden",
+  "header.logout": "Abmelden",
+  "header.new_incident": "+ Neuer Fall",
+  "header.theme_toggle": "Theme wechseln",
+  "header.notifications": "Benachrichtigungen",
+  "filter.all": "Alle",
+  "filter.own": "Eigene",
+  "filter.everything": "Alles",
+  "common.close": "Schließen",
+  "common.cancel": "Abbrechen",
+  "common.save": "Speichern",
+  "common.delete": "Löschen",
+  "common.edit": "Bearbeiten",
+  "common.loading": "Lädt...",
+  "common.confirm": "Bestätigen",
+  "common.error": "Fehler",
+  "modal.new_incident.title": "Neue Lage anlegen",
+  "modal.new_incident.title_field": "Titel des Vorfalls",
+  "modal.new_incident.description": "Beschreibung / Kontext",
+  "modal.new_incident.enhance": "Beschreibung generieren",
+  "modal.new_incident.visibility": "Sichtbarkeit",
+  "modal.new_incident.visibility_public": "Öffentlich",
+  "modal.new_incident.visibility_private": "Privat",
+  "modal.new_incident.submit": "Lage anlegen",
+  "modal.sources.title": "Quellenverwaltung",
+  "modal.sources.approve_all_high": "Alle ≥ 0.85 genehmigen",
+  "modal.export.title": "Bericht exportieren",
+  "modal.fc_status.title": "Statusänderung Faktencheck",
+  "tile.factcheck": "Faktencheck",
+  "tile.research_evaluated": "Recherche-Lagen werden mehrfach evaluiert...",
+  "tile.summary": "Lagebild",
+  "tile.summary_research": "Recherchebericht",
+  "tile.timeline": "Zeitachse",
+  "tile.map": "Karte",
+  "tile.sources": "Quellen",
+  "fc.label.confirmed": "Bestätigt durch mehrere Quellen",
+  "fc.label.unconfirmed": "Nicht unabhängig bestätigt",
+  "fc.label.contradicted": "Widerlegt",
+  "fc.label.developing": "Faktenlage noch im Fluss",
+  "fc.label.established": "Gesicherter Fakt (3+ Quellen)",
+  "fc.label.disputed": "Umstrittener Sachverhalt",
+  "fc.label.unverified": "Nicht unabhängig verifizierbar",
+  "fc.tooltip.confirmed": "Bestätigt: Mindestens zwei unabhängige, seriöse Quellen stützen diese Aussage übereinstimmend.",
+  "fc.tooltip.established": "Gesichert: Drei oder mehr unabhängige Quellen bestätigen den Sachverhalt. Hohe Verlässlichkeit.",
+  "fc.tooltip.developing": "Unklar: Die Faktenlage ist noch im Fluss. Neue Informationen können das Bild verändern.",
+  "fc.tooltip.unconfirmed": "Unbestätigt: Bisher nur aus einer Quelle bekannt. Eine unabhängige Bestätigung steht aus.",
+  "fc.tooltip.unverified": "Ungeprüft: Die Aussage konnte bisher nicht anhand verfügbarer Quellen überprüft werden.",
+  "fc.tooltip.disputed": "Umstritten: Quellen widersprechen sich. Es gibt sowohl stützende als auch widersprechende Belege.",
+  "fc.tooltip.contradicted": "Widerlegt: Zuverlässige Quellen widersprechen dieser Aussage. Wahrscheinlich falsch.",
+  "fc.chip.confirmed": "Bestätigt",
+  "fc.chip.unconfirmed": "Unbestätigt",
+  "fc.chip.contradicted": "Widerlegt",
+  "fc.chip.developing": "Unklar",
+  "fc.chip.established": "Gesichert",
+  "fc.chip.disputed": "Umstritten",
+  "fc.chip.unverified": "Ungeprüft",
+  "refresh.no_developments": "Keine neuen Entwicklungen",
+  "refresh.new_articles_suffix": "neue Artikel",
+  "refresh.confirmed_suffix": "Fakten bestätigt",
+  "refresh.contradicted_suffix": "widerlegt"
+}

src/static/i18n/en.json

@@ -0,0 +1,64 @@
+{
+  "sidebar.live_monitoring": "Live monitoring",
+  "sidebar.research": "Research",
+  "sidebar.empty": "No situations yet",
+  "header.logout": "Sign out",
+  "header.new_incident": "+ New situation",
+  "header.theme_toggle": "Toggle theme",
+  "header.notifications": "Notifications",
+  "filter.all": "All",
+  "filter.own": "Own",
+  "filter.everything": "Everything",
+  "common.close": "Close",
+  "common.cancel": "Cancel",
+  "common.save": "Save",
+  "common.delete": "Delete",
+  "common.edit": "Edit",
+  "common.loading": "Loading...",
+  "common.confirm": "Confirm",
+  "common.error": "Error",
+  "modal.new_incident.title": "Create new situation",
+  "modal.new_incident.title_field": "Incident title",
+  "modal.new_incident.description": "Description / context",
+  "modal.new_incident.enhance": "Generate description",
+  "modal.new_incident.visibility": "Visibility",
+  "modal.new_incident.visibility_public": "Public",
+  "modal.new_incident.visibility_private": "Private",
+  "modal.new_incident.submit": "Create situation",
+  "modal.sources.title": "Source management",
+  "modal.sources.approve_all_high": "Approve all ≥ 0.85",
+  "modal.export.title": "Export report",
+  "modal.fc_status.title": "Fact-check status change",
+  "tile.factcheck": "Fact check",
+  "tile.research_evaluated": "Research situations are evaluated multiple times...",
+  "tile.summary": "Briefing",
+  "tile.summary_research": "Research report",
+  "tile.timeline": "Timeline",
+  "tile.map": "Map",
+  "tile.sources": "Sources",
+  "fc.label.confirmed": "Confirmed by multiple sources",
+  "fc.label.unconfirmed": "Not independently confirmed",
+  "fc.label.contradicted": "Contradicted",
+  "fc.label.developing": "Facts still developing",
+  "fc.label.established": "Established fact (3+ sources)",
+  "fc.label.disputed": "Disputed matter",
+  "fc.label.unverified": "Not independently verifiable",
+  "fc.tooltip.confirmed": "Confirmed: at least two independent, reputable sources support this claim consistently.",
+  "fc.tooltip.established": "Established: three or more independent sources confirm the matter. High reliability.",
+  "fc.tooltip.developing": "Developing: the facts are still in flux. New information may change the picture.",
+  "fc.tooltip.unconfirmed": "Unconfirmed: known from only one source so far. Independent confirmation is pending.",
+  "fc.tooltip.unverified": "Unverified: the claim could not yet be checked against available sources.",
+  "fc.tooltip.disputed": "Disputed: sources disagree. There is both supporting and contradicting evidence.",
+  "fc.tooltip.contradicted": "Contradicted: reliable sources contradict this claim. Likely false.",
+  "fc.chip.confirmed": "Confirmed",
+  "fc.chip.unconfirmed": "Unconfirmed",
+  "fc.chip.contradicted": "Contradicted",
+  "fc.chip.developing": "Developing",
+  "fc.chip.established": "Established",
+  "fc.chip.disputed": "Disputed",
+  "fc.chip.unverified": "Unverified",
+  "refresh.no_developments": "No new developments",
+  "refresh.new_articles_suffix": "new articles",
+  "refresh.confirmed_suffix": "facts confirmed",
+  "refresh.contradicted_suffix": "contradicted"
+}

src/static/js/app.js

@@ -452,6 +452,14 @@ const App = {
             const user = await API.getMe();
             this.user = user;
             this._currentUsername = user.email;
+
+            // i18n: Sprache anhand der Org laden (default 'de') und DOM uebersetzen
+            if (window.I18N) {
+                const targetLang = user.output_language || 'de';
+                await window.I18N.load(targetLang);
+                window.I18N.applyDom();
+            }
+
             document.getElementById('header-user').textContent = user.email;
 
             // Dropdown-Daten befuellen
@@ -543,6 +551,15 @@ const App = {
             if (user.is_global_admin) {
                 this._initOrgSwitcher(user.tenant_id);
             }
+
+            // Tutorial nur bei deutscher Org starten -- englische Demo-Mandanten
+            // sollen direkt im Dashboard landen.
+            try {
+                const lang = (window.I18N && window.I18N.lang) || 'de';
+                if (lang === 'de' && typeof Tutorial !== 'undefined' && Tutorial.init) {
+                    Tutorial.init();
+                }
+            } catch (e) { /* Tutorial optional */ }
         } catch {
             window.location.href = '/';
             return;

src/static/js/components.js

@@ -76,7 +76,10 @@ const UI = {
     /**
      * Faktencheck-Eintrag rendern.
      */
-    factCheckLabels: {
+    // Faktencheck-Status-Labels (org-sprach-relativ via T()).
+    // Die DE-Fallbacks sind die historische Quelle der Wahrheit; bei
+    // englischer Org liefert T() den EN-Text aus i18n/en.json.
+    _fcLabelDefaultsDE: {
         confirmed: 'Bestätigt durch mehrere Quellen',
         unconfirmed: 'Nicht unabhängig bestätigt',
         contradicted: 'Widerlegt',
@@ -85,8 +88,7 @@ const UI = {
         disputed: 'Umstrittener Sachverhalt',
         unverified: 'Nicht unabhängig verifizierbar',
     },
-
-    factCheckTooltips: {
+    _fcTooltipDefaultsDE: {
         confirmed: 'Bestätigt: Mindestens zwei unabhängige, seriöse Quellen stützen diese Aussage übereinstimmend.',
         established: 'Gesichert: Drei oder mehr unabhängige Quellen bestätigen den Sachverhalt. Hohe Verlässlichkeit.',
         developing: 'Unklar: Die Faktenlage ist noch im Fluss. Neue Informationen können das Bild verändern.',
@@ -95,8 +97,7 @@ const UI = {
         disputed: 'Umstritten: Quellen widersprechen sich. Es gibt sowohl stützende als auch widersprechende Belege.',
         contradicted: 'Widerlegt: Zuverlässige Quellen widersprechen dieser Aussage. Wahrscheinlich falsch.',
     },
-
-    factCheckChipLabels: {
+    _fcChipDefaultsDE: {
         confirmed: 'Bestätigt',
         unconfirmed: 'Unbestätigt',
         contradicted: 'Widerlegt',
@@ -106,6 +107,34 @@ const UI = {
         unverified: 'Ungeprüft',
     },
 
+    get factCheckLabels() {
+        const out = {};
+        for (const k of Object.keys(this._fcLabelDefaultsDE)) {
+            out[k] = (typeof T === 'function')
+                ? T('fc.label.' + k, this._fcLabelDefaultsDE[k])
+                : this._fcLabelDefaultsDE[k];
+        }
+        return out;
+    },
+    get factCheckTooltips() {
+        const out = {};
+        for (const k of Object.keys(this._fcTooltipDefaultsDE)) {
+            out[k] = (typeof T === 'function')
+                ? T('fc.tooltip.' + k, this._fcTooltipDefaultsDE[k])
+                : this._fcTooltipDefaultsDE[k];
+        }
+        return out;
+    },
+    get factCheckChipLabels() {
+        const out = {};
+        for (const k of Object.keys(this._fcChipDefaultsDE)) {
+            out[k] = (typeof T === 'function')
+                ? T('fc.chip.' + k, this._fcChipDefaultsDE[k])
+                : this._fcChipDefaultsDE[k];
+        }
+        return out;
+    },
+
     factCheckIcons: {
         confirmed: '✓',
         unconfirmed: '?',

src/static/js/i18n.js

@@ -0,0 +1,71 @@
+// Light-i18n fuer AegisSight Monitor.
+// Wird vor app.js geladen. T(key) ist global verfuegbar.
+//
+// Aufrufer:
+//   await I18N.load(lang);      // 'de' oder 'en'
+//   const txt = T('sidebar.live_monitoring');
+//   I18N.applyDom();            // ersetzt alle <... data-i18n="key">...</...>
+
+(function () {
+    const STORAGE_KEY = 'aegis_lang';
+
+    const I18N = {
+        lang: 'de',
+        dict: {},
+
+        async load(lang) {
+            if (!lang) lang = 'de';
+            if (lang !== 'de' && lang !== 'en') lang = 'de';
+            this.lang = lang;
+            try {
+                const res = await fetch(`/static/i18n/${lang}.json?v=20260513`);
+                if (res.ok) {
+                    this.dict = await res.json();
+                } else {
+                    console.warn(`i18n: Konnte ${lang}.json nicht laden (${res.status})`);
+                    this.dict = {};
+                }
+            } catch (e) {
+                console.warn('i18n-Load fehlgeschlagen:', e);
+                this.dict = {};
+            }
+            try { localStorage.setItem(STORAGE_KEY, lang); } catch (_) {}
+            document.documentElement.setAttribute('lang', lang);
+            return this.dict;
+        },
+
+        // Synchroner Initial-Lookup aus localStorage (fuer FOUC-freies Bootstrap).
+        bootLang() {
+            try { return localStorage.getItem(STORAGE_KEY) || 'de'; } catch (_) { return 'de'; }
+        },
+
+        // Ersetzt alle data-i18n Attribute im DOM.
+        applyDom(root) {
+            root = root || document;
+            root.querySelectorAll('[data-i18n]').forEach(el => {
+                const key = el.getAttribute('data-i18n');
+                if (!key) return;
+                const txt = this.dict[key];
+                if (txt != null) el.textContent = txt;
+            });
+            // Attribute (z.B. placeholder, title): data-i18n-attr="placeholder:key,title:key2"
+            root.querySelectorAll('[data-i18n-attr]').forEach(el => {
+                const spec = el.getAttribute('data-i18n-attr') || '';
+                spec.split(',').forEach(pair => {
+                    const [attr, key] = pair.split(':').map(s => s && s.trim());
+                    if (!attr || !key) return;
+                    const txt = this.dict[key];
+                    if (txt != null) el.setAttribute(attr, txt);
+                });
+            });
+        },
+    };
+
+    function T(key, fallback) {
+        if (I18N.dict && I18N.dict[key] != null) return I18N.dict[key];
+        return fallback != null ? fallback : key;
+    }
+
+    window.I18N = I18N;
+    window.T = T;
+})();