feat: Add HTTP server with static file serving from LittleFS, system API endpoints, and CORS support.

Provider/main/http_server.cpp

@@ -8,6 +8,10 @@
 #include "esp_log.h"
 #include "esp_vfs.h"
 
+#ifdef CONFIG_CALENDINK_DEPLOY_WEB_PAGES
+#include "esp_littlefs.h"
+#endif
+
 // Project
 #include "api/system/info.cpp"
 #include "api/system/reboot.cpp"
@@ -171,6 +175,33 @@ internal esp_err_t cors_options_handler(httpd_req_t *req)
 
 internal httpd_handle_t start_webserver(void)
 {
+#ifdef CONFIG_CALENDINK_DEPLOY_WEB_PAGES
+  esp_vfs_littlefs_conf_t conf = {};
+  conf.base_path = "/www";
+  conf.partition_label = "www";
+  conf.format_if_mount_failed = false;
+  conf.dont_mount = false;
+  esp_err_t ret = esp_vfs_littlefs_register(&conf);
+  if (ret != ESP_OK)
+  {
+    if (ret == ESP_FAIL)
+    {
+      ESP_LOGE(TAG, "Failed to mount or format filesystem");
+    }
+    else if (ret == ESP_ERR_NOT_FOUND)
+    {
+      ESP_LOGE(TAG, "Failed to find LittleFS partition");
+    }
+    else
+    {
+      ESP_LOGE(TAG, "Failed to initialize LittleFS (%s)", esp_err_to_name(ret));
+    }
+  }
+  else
+  {
+    ESP_LOGI(TAG, "LittleFS mounted on /www");
+  }
+#endif
   http_server_data_t *rest_context =
       (http_server_data_t *)calloc(1, sizeof(http_server_data_t));
   if (rest_context == NULL)
@@ -221,5 +252,8 @@ internal void stop_webserver(httpd_handle_t server)
   if (server)
   {
     httpd_stop(server);
+#ifdef CONFIG_CALENDINK_DEPLOY_WEB_PAGES
+    esp_vfs_littlefs_unregister("www");
+#endif
   }
 }