Add routine management features for child and parent views

- Implemented routine child-mode flow tests to ensure proper functionality of routine assignment and task completion.
- Created notification tests for parent view to verify routine completion notifications for children.
- Developed ChildRoutineOverlay component for displaying routine tasks and handling user interactions.
- Added RoutineApproveDialog component for approving or rejecting completed routines.
- Created unit tests for ChildRoutineOverlay and RoutineEditView components to ensure correct behavior and rendering.
- Enhanced RoutineEditView with proper handling of task addition and form submission.

Co-authored-by: Copilot <copilot@github.com>

frontend/src/common/api.ts

@@ -390,3 +390,77 @@ export async function cancelRoutineConfirmation(
     body: JSON.stringify({ routine_id: routineId }),
   })
 }
+
+/**
+ * Parent approves a pending routine confirmation (awards points).
+ */
+export async function approveRoutine(childId: string, confirmationId: string): Promise<Response> {
+  return fetch(`/api/child/${childId}/approve-routine/${confirmationId}`, {
+    method: 'POST',
+  })
+}
+
+/**
+ * Parent rejects a pending routine confirmation (no points, resets to available).
+ */
+export async function rejectRoutine(childId: string, confirmationId: string): Promise<Response> {
+  return fetch(`/api/child/${childId}/reject-routine/${confirmationId}`, {
+    method: 'POST',
+  })
+}
+
+/**
+ * Parent resets an approved routine (routine can be confirmed again).
+ */
+export async function resetRoutine(childId: string, confirmationId: string): Promise<Response> {
+  return fetch(`/api/child/${childId}/reset-routine/${confirmationId}`, {
+    method: 'POST',
+  })
+}
+
+/**
+ * Parent triggers a routine directly (awards points immediately).
+ */
+export async function triggerRoutineAsParent(
+  childId: string,
+  routineId: string,
+): Promise<Response> {
+  return fetch(`/api/child/${childId}/trigger-routine`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ routine_id: routineId }),
+  })
+}
+
+/**
+ * Assign a single routine to a child.
+ */
+export async function assignRoutine(childId: string, routineId: string): Promise<Response> {
+  return fetch(`/api/child/${childId}/assign-routine`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ routine_id: routineId }),
+  })
+}
+
+/**
+ * Remove a single routine assignment from a child.
+ */
+export async function removeRoutine(childId: string, routineId: string): Promise<Response> {
+  return fetch(`/api/child/${childId}/remove-routine`, {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ routine_id: routineId }),
+  })
+}
+
+/**
+ * Replace all routine assignments for a child.
+ */
+export async function setChildRoutines(childId: string, routineIds: string[]): Promise<Response> {
+  return fetch(`/api/child/${childId}/set-routines`, {
+    method: 'PUT',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ routine_ids: routineIds }),
+  })
+}