Enable automatic web search by default; improve toggle behavior and search planning.

public/js/webSearch.js

@@ -6,14 +6,10 @@
 /** @typedef {{role: string, content: string, thinking?: string, sources?: WebSource[]}} ChatMessage */
 
 export function createWebSearchToggle(button) {
-    let enabled = false;
-    const reset = () => {
-        enabled = false;
-        render();
-    };
+    let enabled = true;
     const render = () => {
         button.setAttribute("aria-pressed", String(enabled));
-        button.title = enabled ? "Web search enabled" : "Search the web";
+        button.title = enabled ? "Automatic web search on — click to disable" : "Web search off — click to enable";
         button.setAttribute("aria-label", button.title);
     };
     button.addEventListener("click", () => {
@@ -21,7 +17,7 @@ export function createWebSearchToggle(button) {
         render();
     });
     render();
-    return {get enabled() { return enabled; }, reset};
+    return {get enabled() { return enabled; }};
 }
 
 /** @param {HTMLElement} container @param {WebSource[] | undefined} sources */