fix(web): keep thinking off the spoken consult and rectification answer

Enumerate evidence kinds so education cannot be proposed as a kind, and stream Chinese thinking on a separate channel that collapses when the reply arrives.

Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/components/rectification-agentic-chat.tsx

@@ -382,6 +382,7 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
     setDraft("");
 
     let raw = "";
+    let thinkingRaw = "";
     let activityReceiptState = createRectificationActivityReceiptState();
     let completedReceipt = receiptFromRectificationActivityState(activityReceiptState);
     let completedTurnId: string | undefined;
@@ -465,8 +466,18 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
                 }),
               }
               : message));
+          } else if (event.type === "thinking.delta" && typeof event.text === "string") {
+            thinkingRaw += event.text;
+            setMessages((current) => current.map((message) => message.renderKey === assistantRenderKey
+              ? {
+                ...message,
+                thinkingText: thinkingRaw,
+                state: raw ? "streaming" : "thinking",
+              }
+              : message));
           } else if (event.type === "attempt.reset") {
             raw = "";
+            thinkingRaw = "";
             activityReceiptState = createRectificationActivityReceiptState();
             completedReceipt = receiptFromRectificationActivityState(activityReceiptState);
             completedTurnId = undefined;
@@ -474,6 +485,7 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
               ? {
                 ...message,
                 text: "",
+                thinkingText: undefined,
                 state: "thinking",
                 completedReceipt: undefined,
                 failed: false,
@@ -806,6 +818,7 @@ export function RectificationAgenticChat(props: RectificationAgenticChatProps) {
               ? {
                 ...message,
                 text: "",
+                thinkingText: undefined,
                 state: "thinking" as const,
                 activity: nextActivityView(undefined, {
                   phase: "answer-composition",