Claude opus authored everything to make the user and task work. First iteration

Provider/main/api/tasks/add.cpp

@@ -0,0 +1,76 @@
+// POST /api/tasks — Create a new task
+// Body: {"user_id":1, "title":"...", "due_date":1741369200}
+
+#include "cJSON.h"
+#include "esp_http_server.h"
+
+#include "todo.hpp"
+#include "types.hpp"
+
+internal esp_err_t api_tasks_post_handler(httpd_req_t *req)
+{
+  httpd_resp_set_type(req, "application/json");
+  httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
+
+  char buf[256];
+  int received = httpd_req_recv(req, buf, sizeof(buf) - 1);
+  if (received <= 0)
+  {
+    httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Empty body");
+    return ESP_FAIL;
+  }
+  buf[received] = '\0';
+
+  cJSON *body = cJSON_Parse(buf);
+  if (!body)
+  {
+    httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST, "Invalid JSON");
+    return ESP_FAIL;
+  }
+
+  cJSON *user_id_item = cJSON_GetObjectItem(body, "user_id");
+  cJSON *title_item = cJSON_GetObjectItem(body, "title");
+  cJSON *due_date_item = cJSON_GetObjectItem(body, "due_date");
+
+  if (!cJSON_IsNumber(user_id_item) || !cJSON_IsString(title_item) ||
+      !cJSON_IsNumber(due_date_item))
+  {
+    cJSON_Delete(body);
+    httpd_resp_send_err(req, HTTPD_400_BAD_REQUEST,
+                        "Missing user_id, title, or due_date");
+    return ESP_FAIL;
+  }
+
+  task_t *task =
+      add_task((uint8)user_id_item->valueint, title_item->valuestring,
+               (int64)due_date_item->valuedouble);
+  cJSON_Delete(body);
+
+  if (!task)
+  {
+    httpd_resp_send_err(req, HTTPD_500_INTERNAL_SERVER_ERROR,
+                        "Task limit reached or invalid user");
+    return ESP_FAIL;
+  }
+
+  cJSON *resp = cJSON_CreateObject();
+  cJSON_AddNumberToObject(resp, "id", task->id);
+  cJSON_AddNumberToObject(resp, "user_id", task->user_id);
+  cJSON_AddStringToObject(resp, "title", task->title);
+  cJSON_AddNumberToObject(resp, "due_date", (double)task->due_date);
+  cJSON_AddBoolToObject(resp, "completed", task->completed);
+
+  const char *json = cJSON_PrintUnformatted(resp);
+  httpd_resp_sendstr(req, json);
+
+  free((void *)json);
+  cJSON_Delete(resp);
+
+  return ESP_OK;
+}
+
+internal const httpd_uri_t api_tasks_post_uri = {.uri = "/api/tasks",
+                                                 .method = HTTP_POST,
+                                                 .handler =
+                                                     api_tasks_post_handler,
+                                                 .user_ctx = NULL};