feat: Extend React/Java app to match Lua functionality

Backend:
- Add Pretreatment record for pre-treatment data
- Extend Sample with pretreatment, clinicalExamDate, internalNote
- Extend TherapyRecommendation with detail fields (count, duration, dosage, location)
- Add startvacVaccination and noAntibioticTreatment flags
- Add null-safety defaults for MongoDB compatibility

Frontend:
- Add pretreatment fields to SampleRegistrationPage
- Add special pathogens section to AnamnesisPage
- Add therapy detail pickers to TherapyPage
- Improve AntibiogramPage: full text labels, centered headers
- Fix AdminDashboardPage TypeScript error in chart tooltip

Styling:
- Enlarge matrix buttons for S/I/R text
- Add matrix-col class for centered table columns

frontend/src/pages/AnamnesisPage.tsx

@@ -1,12 +1,13 @@
 import { useEffect, useMemo, useState } from "react";
 import { useNavigate, useParams } from "react-router-dom";
 import { apiGet, apiPut } from "../lib/api";
-import type { ActiveCatalogSummary, QuarterKey, QuarterView, SampleDetail } from "../lib/types";
+import type { ActiveCatalogSummary, PathogenKind, QuarterKey, QuarterView, SampleDetail } from "../lib/types";
 
 type QuarterFormState = {
   pathogenBusinessKey: string;
   customPathogenName: string;
   cellCount: string;
+  pathogenKind: PathogenKind | null;
 };
 
 function quarterStateFromSample(sample: SampleDetail) {
@@ -15,11 +16,18 @@ function quarterStateFromSample(sample: SampleDetail) {
       pathogenBusinessKey: quarter.pathogenBusinessKey ?? "",
       customPathogenName: quarter.customPathogenName ?? "",
       cellCount: quarter.cellCount ? String(quarter.cellCount) : "",
+      pathogenKind: quarter.pathogenKind,
     };
     return accumulator;
   }, {});
 }
 
+// Special pathogen options like in Lua
+const SPECIAL_PATHOGENS = [
+  { key: "NO_GROWTH", label: "Kein bakterielles Wachstum", kind: "NO_GROWTH" as PathogenKind },
+  { key: "CONTAMINATED", label: "Verunreinigte Probe", kind: "CONTAMINATED" as PathogenKind },
+];
+
 export default function AnamnesisPage() {
   const { sampleId } = useParams();
   const navigate = useNavigate();
@@ -76,6 +84,20 @@ export default function AnamnesisPage() {
     return Boolean(quarterState?.pathogenBusinessKey || quarterState?.customPathogenName?.trim());
   }
 
+  function selectSpecialPathogen(quarterKey: QuarterKey, kind: PathogenKind) {
+    updateQuarter(quarterKey, {
+      pathogenBusinessKey: "",
+      customPathogenName: "",
+      pathogenKind: kind,
+    });
+  }
+
+  function isSpecialPathogenSelected(quarterKey: QuarterKey, kind: PathogenKind) {
+    return quarterStates[quarterKey]?.pathogenKind === kind && 
+           !quarterStates[quarterKey]?.pathogenBusinessKey &&
+           !quarterStates[quarterKey]?.customPathogenName;
+  }
+
   async function handleSave() {
     if (!sampleId || !sample) {
       return;
@@ -117,6 +139,7 @@ export default function AnamnesisPage() {
     pathogenBusinessKey: "",
     customPathogenName: "",
     cellCount: "",
+    pathogenKind: null,
   };
 
   return (
@@ -168,7 +191,25 @@ export default function AnamnesisPage() {
             <div className="info-chip">Auffaelliges Viertel markiert</div>
           ) : null}
 
-          <p className="required-label">Erreger</p>
+          {/* Special pathogen options like in Lua */}
+          <p className="required-label">Sonderfaelle</p>
+          <div className="pathogen-grid">
+            {SPECIAL_PATHOGENS.map((pathogen) => (
+              <button
+                key={pathogen.key}
+                type="button"
+                className={`pathogen-button ${
+                  isSpecialPathogenSelected(visibleQuarter.quarterKey, pathogen.kind) ? "is-selected" : ""
+                }`}
+                onClick={() => selectSpecialPathogen(visibleQuarter.quarterKey, pathogen.kind)}
+                disabled={!sample.anamnesisEditable}
+              >
+                <strong>{pathogen.label}</strong>
+              </button>
+            ))}
+          </div>
+
+          <p className="required-label section-card__spacer">Erreger (Katalog)</p>
           <div className={`pathogen-grid ${showValidation && !quarterHasPathogen(visibleQuarter.quarterKey) ? "is-invalid" : ""}`}>
             {catalogs.pathogens.map((pathogen) => (
               <button
@@ -181,6 +222,7 @@ export default function AnamnesisPage() {
                   updateQuarter(visibleQuarter.quarterKey, {
                     pathogenBusinessKey: pathogen.businessKey,
                     customPathogenName: "",
+                    pathogenKind: null,
                   })
                 }
                 disabled={!sample.anamnesisEditable}
@@ -199,6 +241,7 @@ export default function AnamnesisPage() {
                 updateQuarter(visibleQuarter.quarterKey, {
                   customPathogenName: event.target.value,
                   pathogenBusinessKey: "",
+                  pathogenKind: null,
                 })
               }
               disabled={!sample.anamnesisEditable}
@@ -221,8 +264,8 @@ export default function AnamnesisPage() {
           <div className="info-panel info-panel--spaced">
             <strong>Hinweis</strong>
             <p>
-              Kein Wachstum oder verunreinigte Proben werden später automatisch vom
-              Antibiogramm ausgeschlossen.
+              Bei "Kein bakterielles Wachstum" oder "Verunreinigte Probe" wird das Antibiogramm
+              übersprungen und direkt zur Therapie weitergeleitet.
             </p>
           </div>
         </article>