feat(modules): unify Vorsorge, Illness and Labs with the medication pattern

- add a wrench beside each module's add button linking to the module's own
  settings page; rename every add button to a plain "hinzufügen"
- give each module a settings page: view (cards/list) + manual reorder; Labs
  also gets a sort-order choice (by last reading) and biomarker CRUD/reorder
- collapse the Illness "abgeschlossen" list by default
- rebuild the Vorsorge card on the medication card's building blocks: a green
  "Jetzt messen" action, the interval as a chip beside the name, and an
  in-interval progress signal; drop the kebab "anpassen" and stray actions
- persist per-module view/order/sort client-side; add reverse-coverage-clean
  strings across all six locales

src/app/settings/illness/page.tsx

@@ -0,0 +1,39 @@
+"use client";
+
+import { Loader2 } from "lucide-react";
+
+import { useAuth } from "@/hooks/use-auth";
+import { useMounted } from "@/hooks/use-mounted";
+import { useTranslations } from "@/lib/i18n/context";
+import { ModuleSettingsFrame } from "@/components/module-list/module-settings-frame";
+import { IllnessSettings } from "@/components/illness/illness-settings";
+
+/**
+ * v1.18.6 (W8 / MOD-03) — the Illness module's own settings page. Dedicated
+ * static route (wins over `/settings/[section]`); reached from the wrench
+ * beside the Illness page's "hinzufügen" button.
+ */
+export default function IllnessSettingsPage() {
+  const { isLoading } = useAuth();
+  const mounted = useMounted();
+  const { t } = useTranslations();
+
+  if (!mounted || isLoading) {
+    return (
+      <div className="flex min-h-[40vh] items-center justify-center">
+        <Loader2 className="text-muted-foreground h-6 w-6 animate-spin motion-reduce:animate-none" />
+      </div>
+    );
+  }
+
+  return (
+    <ModuleSettingsFrame
+      title={t("illness.settings.title")}
+      description={t("illness.settings.description")}
+      backHref="/illness"
+      backLabelKey="illness.settings.back"
+    >
+      <IllnessSettings />
+    </ModuleSettingsFrame>
+  );
+}

src/app/settings/labs/page.tsx

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+"use client";
+
+import { Loader2 } from "lucide-react";
+
+import { useAuth } from "@/hooks/use-auth";
+import { useMounted } from "@/hooks/use-mounted";
+import { useTranslations } from "@/lib/i18n/context";
+import { ModuleSettingsFrame } from "@/components/module-list/module-settings-frame";
+import { LabsSettings } from "@/components/labs/labs-settings";
+
+/**
+ * v1.18.6 (W8 / MOD-03 + MOD-04) — the Labs module's own settings page.
+ * Dedicated static route (wins over `/settings/[section]`); reached from the
+ * wrench beside the Labs page's "hinzufügen" button.
+ */
+export default function LabsSettingsPage() {
+  const { isLoading } = useAuth();
+  const mounted = useMounted();
+  const { t } = useTranslations();
+
+  if (!mounted || isLoading) {
+    return (
+      <div className="flex min-h-[40vh] items-center justify-center">
+        <Loader2 className="text-muted-foreground h-6 w-6 animate-spin motion-reduce:animate-none" />
+      </div>
+    );
+  }
+
+  return (
+    <ModuleSettingsFrame
+      title={t("labs.settings.title")}
+      description={t("labs.settings.description")}
+      backHref="/labs"
+      backLabelKey="labs.settings.back"
+    >
+      <LabsSettings />
+    </ModuleSettingsFrame>
+  );
+}

src/app/settings/vorsorge/page.tsx

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+"use client";
+
+import { Loader2 } from "lucide-react";
+
+import { useAuth } from "@/hooks/use-auth";
+import { useMounted } from "@/hooks/use-mounted";
+import { useTranslations } from "@/lib/i18n/context";
+import { ModuleSettingsFrame } from "@/components/module-list/module-settings-frame";
+import { VorsorgeSettings } from "@/components/measurement-reminders/vorsorge-settings";
+
+/**
+ * v1.18.6 (W8 / MOD-03) — the Vorsorge module's own settings page.
+ *
+ * A dedicated static route that wins over the dynamic `/settings/[section]`
+ * router (static segments take precedence in Next.js), so it adds a
+ * per-module settings surface without touching the parallel-phase-owned
+ * `section-slugs` registry or `settings-shell`. Reached from the wrench
+ * beside the Vorsorge page's "hinzufügen" button.
+ */
+export default function VorsorgeSettingsPage() {
+  const { isLoading } = useAuth();
+  const mounted = useMounted();
+  const { t } = useTranslations();
+
+  if (!mounted || isLoading) {
+    return (
+      <div className="flex min-h-[40vh] items-center justify-center">
+        <Loader2 className="text-muted-foreground h-6 w-6 animate-spin motion-reduce:animate-none" />
+      </div>
+    );
+  }
+
+  return (
+    <ModuleSettingsFrame
+      title={t("measurementReminders.settings.title")}
+      description={t("measurementReminders.settings.description")}
+      backHref="/vorsorge"
+      backLabelKey="measurementReminders.settings.back"
+    >
+      <VorsorgeSettings />
+    </ModuleSettingsFrame>
+  );
+}