feat: Implement OTA status API with partition information, define ESP32 partition layout, add ArrayCount utility, and include agent interaction rules.

Provider/.agents/rules/how-to-work-with-user.md

@@ -0,0 +1,5 @@
+---
+trigger: always_on
+---
+
+The way you must work with the human user is simple. When you finish a task, tell him what you did, what you think you should do next and ask for review and confirmation. Never go rogue.

Provider/main/api/ota/status.cpp

@@ -1,3 +1,5 @@
+#include <cstddef>
+
 // SDK
 #include "cJSON.h"
 #include "esp_http_server.h"
@@ -7,6 +9,7 @@
 // Project
 #include "appstate.hpp"
 #include "types.hpp"
+#include "utils.hpp"
 
 internal esp_err_t api_ota_status_handler(httpd_req_t *req)
 {
@@ -17,22 +20,24 @@ internal esp_err_t api_ota_status_handler(httpd_req_t *req)
 
   cJSON_AddNumberToObject(root, "active_slot", g_Active_WWW_Partition);
 
-  const char *partitions[] = {"www_0", "www_1"};
+  constexpr const char *kPartitions[] = {"www_0", "www_1", "ota_0", "ota_1",
+                                         "factory"};
+  constexpr size_t kPartitionCount = ArrayCount(kPartitions);
   cJSON *parts_arr = cJSON_AddArrayToObject(root, "partitions");
 
-  for (int i = 0; i < 2; i++)
+  for (size_t i = 0; i < kPartitionCount; i++)
   {
     cJSON *p_obj = cJSON_CreateObject();
-    cJSON_AddStringToObject(p_obj, "label", partitions[i]);
+    cJSON_AddStringToObject(p_obj, "label", kPartitions[i]);
 
     const esp_partition_t *p = esp_partition_find_first(
-        ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_ANY, partitions[i]);
+        ESP_PARTITION_TYPE_DATA, ESP_PARTITION_SUBTYPE_ANY, kPartitions[i]);
     if (p)
     {
       cJSON_AddNumberToObject(p_obj, "size", p->size);
 
       size_t total = 0, used = 0;
-      if (esp_littlefs_info(partitions[i], &total, &used) == ESP_OK)
+      if (esp_littlefs_info(kPartitions[i], &total, &used) == ESP_OK)
       {
         cJSON_AddNumberToObject(p_obj, "used", used);
         cJSON_AddNumberToObject(p_obj, "free", total - used);

Provider/main/utils.hpp

@@ -0,0 +1,8 @@
+#pragma once
+
+#include <types.hpp>
+
+template <typename T, size_t N> constexpr size_t ArrayCount(T (&)[N])
+{
+  return N;
+}

Provider/partitions.csv

@@ -1,6 +1,9 @@
 # Name,   Type, SubType,  Offset,   Size,   Flags
 nvs,      data, nvs,      0x9000,   0x6000,
-phy_init, data, phy,      0xf000,   0x1000,
+otadata,  data, ota,      ,         0x2000,
-factory,  app,  factory,  0x10000,  1M,
+phy_init, data, phy,      ,         0x1000,
+factory,  app,  factory,  ,         2M,
+ota_0,    app,  ota_0,    ,         2M,
+ota_1,    app,  ota_1,    ,         2M,
 www_0,    data, littlefs, ,         1M,
 www_1,    data, littlefs, ,         1M,