feat: add mobile application structure with emotion picker and API integration

- Added favicon and icon assets for the mobile app.
- Implemented EmotionPicker component for selecting emotions with child options.
- Created hooks for fetching emotions, feeds, and rapport data.
- Established API service for handling requests and authentication.
- Integrated Zustand for state management of user authentication.
- Defined color palette for the application.
- Set up TypeScript types for various entities including User, Emotion, and Feed.
- Configured Babel and TypeScript for the mobile project.
- Added package.json with necessary dependencies for Expo and React Native.

mobile/hooks/useTracker.ts

@@ -0,0 +1,69 @@
+import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
+import api from '@/lib/api';
+import type { SaisieTracker } from '@/types';
+
+interface SaisieFilters {
+  date_debut?: string;
+  date_fin?: string;
+  emotion_id?: number;
+}
+
+export function useSaisies(filters?: SaisieFilters) {
+  return useQuery<SaisieTracker[]>({
+    queryKey: ['saisies', filters],
+    queryFn: async () => {
+      const response = await api.get('/tracker/saisies', { params: filters });
+      return response.data.data ?? response.data;
+    },
+  });
+}
+
+export function useCreateSaisie() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: async (data: {
+      emotion_id: number;
+      intensite: number;
+      note?: string;
+      date_saisie?: string;
+    }) => {
+      const response = await api.post('/tracker/saisies', data);
+      return response.data;
+    },
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['saisies'] });
+    },
+  });
+}
+
+export function useUpdateSaisie() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: async ({ id, ...data }: {
+      id: number;
+      emotion_id?: number;
+      intensite?: number;
+      note?: string;
+      date_saisie?: string;
+    }) => {
+      const response = await api.put(`/tracker/saisies/${id}`, data);
+      return response.data;
+    },
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['saisies'] });
+    },
+  });
+}
+
+export function useDeleteSaisie() {
+  const queryClient = useQueryClient();
+  return useMutation({
+    mutationFn: async (id: number) => {
+      const response = await api.delete(`/tracker/saisies/${id}`);
+      return response.data;
+    },
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['saisies'] });
+    },
+  });
+}