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

test/regeneration.test.js

@@ -22,7 +22,10 @@ async function fixture(t) {
     });
     await new Promise(resolve => search.listen(0, "127.0.0.1", resolve));
     const modelService = {
-        async generateReply() { return `Original ${++sequence}`; },
+        async generateReply(_model, _messages, options) {
+            if (options.format?.properties?.search) return '{"search":false,"query":""}';
+            return `Original ${++sequence}`;
+        },
         async streamReply(model, messages, chunk, options) {
             calls.push({model, messages, options});
             if (options.reasoning) options.onThinking("New reasoning", "New reasoning");
@@ -59,7 +62,7 @@ async function fixture(t) {
     };
     await api("/register", {username: "regenerator", password: "test-password"});
     const chatId = (await (await api("/chats", {title: "Versions"})).json()).chat.id;
-    await api("/chat", {chatId, message: "Search the web for the latest satellite launch news today"});
+    await api("/chat", {chatId, message: "Search the web for the latest satellite launch news today", webSearch: false});
     await api("/chat", {chatId, message: "Later private question"});
     const messages = (await (await api(`/chats/${chatId}/messages`)).json()).messages;
     const bot = messages[1];
@@ -122,7 +125,7 @@ test("regeneration streams before commit in the same message; versions retain so
     assert.equal((await s.history())[1].content, "Edited original");
     assert.equal((await s.api(`${s.path}/versions/99`, {})).status, 400);
     s.setMode("success");
-    const third = await (await s.api(`${s.path}/retry/stream`, {})).text();
+    const third = await (await s.api(`${s.path}/retry/stream`, {webSearch: false})).text();
     assert.match(third, /event: done/);
     const thirdMessage = (await s.history())[1];
     assert.equal(thirdMessage.versionCount, 3);