semantic markup update

frontend/src/pages/Settings.svelte

@@ -50,6 +50,8 @@
     // [DEF:loadSettings:Function]
     /**
      * @purpose Loads settings from the backend.
+     * @pre Component mounted or refresh requested.
+     * @post settings object is populated with backend data.
      */
     async function loadSettings() {
         try {
@@ -67,6 +69,8 @@
     // [DEF:handleSaveGlobal:Function]
     /**
      * @purpose Saves global settings to the backend.
+     * @pre settings.settings contains valid configuration.
+     * @post Backend global settings are updated.
      */
     async function handleSaveGlobal() {
         try {
@@ -84,6 +88,8 @@
     // [DEF:handleAddOrUpdateEnv:Function]
     /**
      * @purpose Adds or updates an environment.
+     * @pre newEnv contains valid environment details.
+     * @post Environment list is updated on backend and reloaded locally.
      */
     async function handleAddOrUpdateEnv() {
         try {
@@ -108,6 +114,8 @@
     // [DEF:handleDeleteEnv:Function]
     /**
      * @purpose Deletes an environment.
+     * @pre id of environment to delete is provided.
+     * @post Environment is removed from backend and list is reloaded.
      * @param {string} id - The ID of the environment to delete.
      */
     async function handleDeleteEnv(id) {
@@ -129,6 +137,8 @@
     // [DEF:handleTestEnv:Function]
     /**
      * @purpose Tests the connection to an environment.
+     * @pre Environment ID is valid.
+     * @post Connection test result is displayed via toast.
      * @param {string} id - The ID of the environment to test.
      */
     async function handleTestEnv(id) {
@@ -152,6 +162,8 @@
     // [DEF:editEnv:Function]
     /**
      * @purpose Sets the form to edit an existing environment.
+     * @pre env object is provided.
+     * @post newEnv is populated with env data and editingEnvId is set.
      * @param {Object} env - The environment object to edit.
      */
     function editEnv(env) {
@@ -163,6 +175,8 @@
     // [DEF:resetEnvForm:Function]
     /**
      * @purpose Resets the environment form.
+     * @pre None.
+     * @post newEnv is reset to initial state and editingEnvId is cleared.
      */
     function resetEnvForm() {
         newEnv = {