Frontend Sprint 3+4: Dog-Switcher, Health-Seite, Multi-Dog Tagebuch

- app.js: vollständiger Dog-Switcher (Avatar im Header/Sidebar, Quickpicker
  bei 3+ Hunden, setActiveDog, localStorage-Persistenz), iOS Ghost-Click Fix,
  Loading-Guard, Logout State Reset
- index.html: Dog-Switcher HTML, Favicon-Links, Sidebar "+ Neu erstellen",
  Navigation Tab Karte → Gesundheit
- health.js (neu): vollständiges Health-Frontend mit Tabs (Impfung, Entwurmung,
  Tierarzt, Medikament, Gewicht-Kurve, Allergie, Dokument), Ampel-System,
  KI-Zusammenfassung
- dog-profile.js: "+ Weiteren Hund anlegen" Button + _openCreateModal(),
  Event-Delegation statt direkter Listener (kein Doppelaufruf)
- diary.js: Dog-Picker im Formular, Avatar-Reihe auf Karten, Dog-Chips
  im Detail-Modal, dog_ids im API-Payload
- poison.js: Erledigt-Dialog mit Grundauswahl (beseitigt/fehlerhaft/anderes)
- api.js: health-Endpoints (list, create, update, delete, upload, ki)
- ui.js: confirm() Fix (resolve vor close)
- layout.css: Dog-Switcher Styles, scrollbare Sidebar-Nav, User-Item fix
- components.css: Health-Styles, Diary Dog-Picker, Ampel-Punkte, Gewicht-SVG
- icons/: Favicon-Set (ico, 16px, 32px, 180px, 192px, 512px)

backend/static/js/api.js

@@ -116,10 +116,19 @@ const API = (() => {
   // GESUNDHEIT
   // ----------------------------------------------------------
   const health = {
-    list(dogId)           { return get(`/dogs/${dogId}/health`); },
+    list(dogId, typ = null) {
+      const q = typ ? `?typ=${encodeURIComponent(typ)}` : '';
+      return get(`/dogs/${dogId}/health${q}`);
+    },
     create(dogId, data)   { return post(`/dogs/${dogId}/health`, data); },
     update(dogId, id, d)  { return patch(`/dogs/${dogId}/health/${id}`, d); },
     delete(dogId, id)     { return del(`/dogs/${dogId}/health/${id}`); },
+    uploadDokument(dogId, id, formData) {
+      return upload(`/dogs/${dogId}/health/${id}/dokument`, formData);
+    },
+    kiZusammenfassung(dogId) {
+      return post(`/dogs/${dogId}/health/ki-zusammenfassung`);
+    },
     symptomCheck(dogId, symptoms) {
       return post(`/dogs/${dogId}/health/symptom-check`, { symptoms });
     },
@@ -134,7 +143,7 @@ const API = (() => {
     },
     report(data)         { return post('/poison', data); },
     confirm(id)          { return post(`/poison/${id}/confirm`); },
-    resolve(id)          { return post(`/poison/${id}/resolve`); },
+    resolve(id, data={}) { return post(`/poison/${id}/resolve`, data); },
     uploadPhoto(id, form){ return upload(`/poison/${id}/photo`, form); },
   };