diff --git a/CHANGELOG.md b/CHANGELOG.md
index 557305a..0bdc979 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,18 @@
 
 All notable changes to this project are documented in this file.
 
+## [1.117.5] - 2026-09-07
+
+### Changed
+- Die gemeinsamen Datentypen der Wochenansicht liegen jetzt in `src/lib/weekly/types.ts`
+  (`Task`, `CalendarEvent`, `SomedayList`, `ViewStyle`, `KanbanStage`, `CellDuration`,
+  `RecurringTaskException`). `SettingsSidebar` und `GridTaskBlock` importierten sie bisher
+  aus `WeeklyView.tsx` und zogen sich damit die gesamte 11.900-Zeilen-Komponente in ihren
+  Abhängigkeitsgraphen. `WeeklyView.tsx` re-exportiert die Typen weiterhin, bestehende
+  Importe funktionieren also unverändert.
+- Erster Schritt der Aufteilung von `WeeklyView.tsx`: 11.906 → 11.830 Zeilen.
+  Mit `npm run build` verifiziert (Exit 0, 36 Seiten, `/tasks` unverändert bei 265 kB).
+
 ## [1.117.4] - 2026-09-07
 
 ### Fixed
diff --git a/TODO.md b/TODO.md
index 93a1090..be57c10 100644
--- a/TODO.md
+++ b/TODO.md
@@ -103,6 +103,8 @@ Anleitung siehe [`docs/secret-rotation.md`](docs/secret-rotation.md).
 - [ ] **Schritt 2:** `npm run type-check` laufen lassen, Fehlerzahl notieren
 - [ ] Fehler abarbeiten — modulweise, nicht auf einmal
 - [ ] **Schritt 3:** `typescript.ignoreBuildErrors` auf `false`
+- [ ] **3 Dateien mit `@ts-nocheck`** aufspüren und entschärfen — die überspringen den
+      Typecheck vollständig, `ignoreBuildErrors: false` würde sie gar nicht erfassen
 - [ ] `any`-Stellen reduzieren — ESLint zählt **470** `no-explicit-any` — fortlaufend, kein Blocker
 - [ ] **209** ungenutzte Variablen (`no-unused-vars`) aufräumen — fortlaufend
 - [ ] **11** unvollständige Hook-Abhängigkeiten (`react-hooks/exhaustive-deps`) prüfen —
@@ -126,13 +128,14 @@ Betroffen sind genau zwei Dateien:
 
 | Datei | Zeilen |
 |---|---:|
-| `src/components/WeeklyView.tsx` | 11.906 |
+| `src/components/WeeklyView.tsx` | 11.830 *(war 11.906)* |
 | `src/components/SettingsSidebar.tsx` | 5.445 |
 
 **Voraussetzung:** C1 muss laufen — ohne Typecheck ist ein Refactoring dieser Größe
 Blindflug. Ebenso hilfreich: A2, damit es überhaupt Tests gibt.
 
 #### WeeklyView.tsx → Zielstruktur
+- [x] Typen nach `src/lib/weekly/types.ts` (7 Typen, 97 Zeilen) — Build verifiziert
 - [ ] `src/components/weekly/` anlegen
 - [ ] Reine Helfer nach `src/lib/weekly/` (Datum, Slots, Formatierung)
 - [ ] Drag & Drop in einen Hook `useTaskDragDrop.ts`
diff --git a/package-lock.json b/package-lock.json
index 72e51ba..fd02fd8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "my-weekly-todo-list",
-  "version": "1.117.4",
+  "version": "1.117.5",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "my-weekly-todo-list",
-      "version": "1.117.4",
+      "version": "1.117.5",
       "license": "MIT",
       "dependencies": {
         "@auth/prisma-adapter": "^2.11.1",
diff --git a/package.json b/package.json
index b54c83a..0a3ab17 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "my-weekly-todo-list",
-  "version": "1.117.4",
+  "version": "1.117.5",
   "description": "A web-based weekly task management application that organizes to-dos and calendar events in a single, intuitive weekly view",
   "main": "index.js",
   "scripts": {
diff --git a/src/components/WeeklyView.tsx b/src/components/WeeklyView.tsx
index 8a3c5b1..0074a8b 100644
--- a/src/components/WeeklyView.tsx
+++ b/src/components/WeeklyView.tsx
@@ -106,7 +106,12 @@ import SearchModal from "./SearchModal";
 import SimpleDatePicker from "./SimpleDatePicker";
 import RecurringTasksManager from "./RecurringTasksManager";
 import WeekPrintModal from "./WeekPrintModal";
-export interface RecurringTaskException { id: string; taskId: string; originalDate: string; newDate?: string | null; isCancelled: boolean; createdAt: Date; updatedAt: Date; }
+import type {
+    RecurringTaskException, ViewStyle, KanbanStage, Task,
+    CalendarEvent, SomedayList, CellDuration,
+} from "@/lib/weekly/types";
+// Re-Export: SettingsSidebar und GridTaskBlock importieren diese Typen historisch von hier
+export type { RecurringTaskException, ViewStyle, KanbanStage, Task, CalendarEvent, SomedayList, CellDuration };
 import { ImportListModal } from "./ImportListModal";
 import OnboardingWizard from "./OnboardingWizard";
 import CalendarSyncRulesPanel from "./CalendarSyncRulesPanel";
@@ -164,93 +169,12 @@ function writeDeviceViewCookie(settings: Record<string, Record<string, any>>) {
     setCookie("device_view_settings", JSON.stringify(settings));
 }
 
-export type ViewStyle = "simple" | "calendar" | "list" | "grid" | "kanban" | "priority";
 
-export interface KanbanStage {
-    id: string;
-    name: string;
-    color: string;
-}
 
-export interface Task {
-    id: string;
-    title: string;
-    completed: boolean;
-    dayOfWeek?: number | null;
-    scheduledDate?: string | null;
-    markdownContent?: string | null;
-    createdAt?: Date;
-    updatedAt: Date;
-    order: number;
-    completedAt?: Date | null;
-    externalId?: string | null;
-    externalProvider?: string | null;
-    lastSyncedAt?: Date | null;
-    syncStatus?: string | null;
-    subTasks?: Task[];
-    parentId?: string | null;
-    isRolling?: boolean;
-    isRecurring?: boolean;
-    somedayListId?: string | null;
-    somedaySlotIndex?: number | null;
-    repeatPattern?: string | null;
-    repeatEndDate?: string | null;
-    repeatStartDate?: string | null;
-    originalRecurringId?: string | null;
-    baseRecurringTask?: Task | null;
-    recurringExceptions?: RecurringTaskException[];
-    startTime?: string | null;
-    duration?: number | null;
-    parentTaskId?: string | null;
-    userId: string;
-    recurrenceInterval?: number | null;
-    recurrenceUnit?: string | null;
-    recurrenceTime?: string | null;
-    recurrenceEndDate?: Date | null;
-    recurrenceDays?: number[] | null;
-    externalListId?: string | null;
-    projectId?: string | null;
-    project?: { id: string; name: string; icon?: string | null; color?: string | null } | null;
-    kanbanStage?: string | null;
-    url?: string | null;
-    urgency?: boolean | null;
-    importance?: boolean | null;
-    priority?: string | null;
-    delegatedTo?: string | null;
-    delegationNote?: string | null;
-}
 
-interface CalendarEvent {
-    id: string;
-    title: string;
-    startTime: string;
-    endTime: string;
-    source: "google" | "apple" | "outlook" | "synology" | "notion";
-    calendarId?: string;
-    calendarTitle?: string;
-    calendarColor?: string;
-    editable?: boolean;
-    recurringEventId?: string;
-    isRecurring?: boolean;
-    description?: string;
-    location?: string;
-    url?: string;
-}
 
-export interface SomedayList {
-    id: string;
-    title: string;
-    tasks: Task[];
-    tab?: string | null;
-    color?: string | null;
-    icon?: string | null;
-    externalProvider?: string | null;
-    externalId?: string | null;
-    externalListId?: string | null;
-}
 
 // Time grid configuration options
-export type CellDuration = 15 | 20 | 30 | 60;
 const DEFAULT_SOMEDAY_SLOT_COUNT = 5;
 
 const getSomedaySlotCount = (tasks: Task[]) => {
diff --git a/src/lib/weekly/types.ts b/src/lib/weekly/types.ts
new file mode 100644
index 0000000..4bad497
--- /dev/null
+++ b/src/lib/weekly/types.ts
@@ -0,0 +1,97 @@
+/**
+ * Gemeinsame Datentypen der Wochenansicht.
+ *
+ * Lagen bis v1.117.5 in WeeklyView.tsx. Typen gehören nicht in eine Komponentendatei:
+ * SettingsSidebar und GridTaskBlock importierten sie von dort und zogen sich damit die
+ * gesamte Komponente in ihren Abhängigkeitsgraphen.
+ */
+
+export interface RecurringTaskException { id: string; taskId: string; originalDate: string; newDate?: string | null; isCancelled: boolean; createdAt: Date; updatedAt: Date; }
+
+export type ViewStyle = "simple" | "calendar" | "list" | "grid" | "kanban" | "priority";
+
+export interface KanbanStage {
+    id: string;
+    name: string;
+    color: string;
+}
+
+export interface Task {
+    id: string;
+    title: string;
+    completed: boolean;
+    dayOfWeek?: number | null;
+    scheduledDate?: string | null;
+    markdownContent?: string | null;
+    createdAt?: Date;
+    updatedAt: Date;
+    order: number;
+    completedAt?: Date | null;
+    externalId?: string | null;
+    externalProvider?: string | null;
+    lastSyncedAt?: Date | null;
+    syncStatus?: string | null;
+    subTasks?: Task[];
+    parentId?: string | null;
+    isRolling?: boolean;
+    isRecurring?: boolean;
+    somedayListId?: string | null;
+    somedaySlotIndex?: number | null;
+    repeatPattern?: string | null;
+    repeatEndDate?: string | null;
+    repeatStartDate?: string | null;
+    originalRecurringId?: string | null;
+    baseRecurringTask?: Task | null;
+    recurringExceptions?: RecurringTaskException[];
+    startTime?: string | null;
+    duration?: number | null;
+    parentTaskId?: string | null;
+    userId: string;
+    recurrenceInterval?: number | null;
+    recurrenceUnit?: string | null;
+    recurrenceTime?: string | null;
+    recurrenceEndDate?: Date | null;
+    recurrenceDays?: number[] | null;
+    externalListId?: string | null;
+    projectId?: string | null;
+    project?: { id: string; name: string; icon?: string | null; color?: string | null } | null;
+    kanbanStage?: string | null;
+    url?: string | null;
+    urgency?: boolean | null;
+    importance?: boolean | null;
+    priority?: string | null;
+    delegatedTo?: string | null;
+    delegationNote?: string | null;
+}
+
+export interface CalendarEvent {
+    id: string;
+    title: string;
+    startTime: string;
+    endTime: string;
+    source: "google" | "apple" | "outlook" | "synology" | "notion";
+    calendarId?: string;
+    calendarTitle?: string;
+    calendarColor?: string;
+    editable?: boolean;
+    recurringEventId?: string;
+    isRecurring?: boolean;
+    description?: string;
+    location?: string;
+    url?: string;
+}
+
+export interface SomedayList {
+    id: string;
+    title: string;
+    tasks: Task[];
+    tab?: string | null;
+    color?: string | null;
+    icon?: string | null;
+    externalProvider?: string | null;
+    externalId?: string | null;
+    externalListId?: string | null;
+}
+
+// Time grid configuration options
+export type CellDuration = 15 | 20 | 30 | 60;