fix(core): prefer streamed plan content

Generated-By: PostHog Code
Task-Id: c1bbe3cf-742b-4b24-bf96-d11a18b4cf22

Author: richardsolomou

packages/core/src/sessions/planApprovalPresentation.test.ts

@@ -18,12 +18,12 @@ describe("extractPlanText", () => {
     expect(extractPlanText(toolCall)).toBe(expected);
   });
 
-  it("prefers the canonical raw plan over rendered content", () => {
+  it("prefers streamed content over stale raw input", () => {
     expect(
       extractPlanText({
         rawInput: { plan: "Canonical" },
         content: [{ text: "Rendered" }],
       }),
-    ).toBe("Canonical");
+    ).toBe("Rendered");
   });
 });

packages/core/src/sessions/planApprovalPresentation.ts

@@ -12,12 +12,12 @@ export function extractPlanText(toolCall: {
   rawInput?: { plan?: unknown } | null;
   content?: readonly unknown[] | null;
 }): string | null {
-  const rawPlan = toolCall.rawInput?.plan;
-  if (typeof rawPlan === "string" && rawPlan.trim()) return rawPlan;
-
   for (const item of toolCall.content ?? []) {
     const text = extractTextContent(item);
     if (text?.trim()) return text;
   }
+
+  const rawPlan = toolCall.rawInput?.plan;
+  if (typeof rawPlan === "string" && rawPlan.trim()) return rawPlan;
   return null;
 }