fix(report): do not fail a written report when progress projection throws

Staging wrote four ready chapters then marked the job schema-invalid 34ms
later with no summary telemetry. Keep chapter persistence and assemble
going if onProgress or a non-lease heartbeat error fails.

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

frontend/tests/personal-report-generation-v2.test.ts

@@ -426,8 +426,14 @@ test("production writer and worker keep the same signal on initial and repair mo
     new URL("../src/lib/personal-report-worker-core.ts", import.meta.url),
     "utf8",
   );
-  assert.match(workerCore, /onProgress: async \(progress\) => \{\s*await refreshLease\(\)/);
+  assert.match(workerCore, /onProgress: async \(progress\) => \{\s*try \{\s*await refreshLease\(\)/);
   assert.doesNotMatch(workerCore, /timerUnref\(heartbeatTimer\)/);
+  const generationSource = readFileSync(
+    new URL("../src/lib/personal-report-generation.ts", import.meta.url),
+    "utf8",
+  );
+  assert.match(generationSource, /const emitProgress = async \(phase: string, completed: number\)/);
+  assert.match(generationSource, /rethrowIfAborted\(error, deps\.signal\);/);
 });
 
 test("an all-blocked plan still produces a valid v2 document with honest disclosures and no invented thematic section", async () => {
@@ -828,6 +834,23 @@ test("sectioned generation makes one filtered call per write theme, then summary
   assert.match(document.executiveSummary.summary, /事业与方向/);
 });
 
+test("sectioned generation still assembles when onProgress throws after a persisted section", async () => {
+  const bundle = makeBundle({
+    themes: fullThemes.slice(0, 3),
+    charts: [chart("D1"), chart("D2", 1), chart("D9", 2), chart("D10", 3), chart("D11", 4)],
+  });
+  const result = await runSectioned(
+    bundle,
+    sectionedAgent({}),
+    inMemorySectionService(),
+    async () => {
+      throw new Error("progress_projection_failed");
+    },
+  );
+  const document = readyV2(result);
+  assert.deepEqual(document.thematicNarrative.map((section) => section.theme), ["career", "marriage", "wealth"]);
+});
+
 test("sectioned resume skips ready sections after an interruption", async () => {
   const bundle = makeBundle({ themes: fullThemes, charts: [chart("D1"), chart("D2", 1), chart("D9", 2), chart("D10", 3), chart("D11", 4), chart("D24", 5)] });
   const service = inMemorySectionService();