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

Provider/main/api/tasks/upcoming.cpp

@@ -0,0 +1,72 @@
+// GET /api/tasks/upcoming — Top 3 upcoming tasks per user (for Dashboard)
+
+#include "cJSON.h"
+#include "esp_http_server.h"
+
+#include "todo.hpp"
+#include "types.hpp"
+
+internal esp_err_t api_tasks_upcoming_handler(httpd_req_t *req)
+{
+  httpd_resp_set_type(req, "application/json");
+  httpd_resp_set_hdr(req, "Access-Control-Allow-Origin", "*");
+
+  cJSON *root = cJSON_CreateObject();
+  cJSON *users_arr = cJSON_AddArrayToObject(root, "users");
+
+  for (int u = 0; u < MAX_USERS; u++)
+  {
+    if (!g_Users[u].active)
+      continue;
+
+    // Collect incomplete tasks for this user
+    task_t *user_tasks[MAX_TASKS];
+    int count = 0;
+
+    for (int t = 0; t < MAX_TASKS; t++)
+    {
+      if (g_Tasks[t].active && g_Tasks[t].user_id == g_Users[u].id &&
+          !g_Tasks[t].completed)
+      {
+        user_tasks[count++] = &g_Tasks[t];
+      }
+    }
+
+    // Sort by due_date ascending
+    sort_tasks_by_due_date(user_tasks, count);
+
+    // Build user object with top 3
+    cJSON *user_obj = cJSON_CreateObject();
+    cJSON_AddNumberToObject(user_obj, "id", g_Users[u].id);
+    cJSON_AddStringToObject(user_obj, "name", g_Users[u].name);
+
+    cJSON *tasks_arr = cJSON_AddArrayToObject(user_obj, "tasks");
+    int limit = count < 3 ? count : 3;
+    for (int i = 0; i < limit; i++)
+    {
+      cJSON *t_obj = cJSON_CreateObject();
+      cJSON_AddNumberToObject(t_obj, "id", user_tasks[i]->id);
+      cJSON_AddStringToObject(t_obj, "title", user_tasks[i]->title);
+      cJSON_AddNumberToObject(t_obj, "due_date",
+                              (double)user_tasks[i]->due_date);
+      cJSON_AddBoolToObject(t_obj, "completed", user_tasks[i]->completed);
+      cJSON_AddItemToArray(tasks_arr, t_obj);
+    }
+
+    cJSON_AddItemToArray(users_arr, user_obj);
+  }
+
+  const char *json = cJSON_PrintUnformatted(root);
+  httpd_resp_sendstr(req, json);
+
+  free((void *)json);
+  cJSON_Delete(root);
+
+  return ESP_OK;
+}
+
+internal const httpd_uri_t api_tasks_upcoming_uri = {
+    .uri = "/api/tasks/upcoming",
+    .method = HTTP_GET,
+    .handler = api_tasks_upcoming_handler,
+    .user_ctx = NULL};