feat: Implement content planning and post management with a new service and calendar view.

src/services/postService.js

@@ -0,0 +1,24 @@
+import api from './api';
+
+export const postService = {
+  getPosts: (dateFrom, dateTo) => {
+    const params = {};
+    if (dateFrom) params.date_from = dateFrom;
+    if (dateTo) params.date_to = dateTo;
+    return api.get('/posts', { params }).then(r => r.data);
+  },
+
+  createPost: (data) => api.post('/posts', data).then(r => r.data),
+
+  getPost: (id) => api.get(`/posts/${id}`).then(r => r.data),
+
+  updatePost: (id, data) => api.put(`/posts/${id}`, data).then(r => r.data),
+
+  deletePost: (id) => api.delete(`/posts/${id}`).then(r => r.data),
+
+  addGenerations: (postId, generationIds) =>
+    api.post(`/posts/${postId}/generations`, { generation_ids: generationIds }).then(r => r.data),
+
+  removeGeneration: (postId, generationId) =>
+    api.delete(`/posts/${postId}/generations/${generationId}`).then(r => r.data),
+};