feat: restore full-fidelity heaven rituals

tests/e2e/app-shell.spec.js

@@ -374,7 +374,8 @@ test("heaven reading loading uses the matching canvas scene and stops cleanly",
         await heavenReadingAnimation.complete();
         return performance.now() - started;
       });
-      expect(completionMs).toBeLessThan(1000);
+      expect(completionMs).toBeGreaterThanOrEqual(1600);
+      expect(completionMs).toBeLessThan(2000);
       await expect(canvas).toHaveAttribute("data-running", "false");
     }
     await page.locator("#closeHeavenReadingDialog").click();

tests/test_heaven_readings.py

@@ -83,6 +83,47 @@ class HeavenReadingTests(unittest.TestCase):
         self.assertEqual(result["reading"]["id"], existing["id"])
         self.assertEqual(result["answer"], "当日解运结果")
 
+    def test_legacy_truncated_fortune_is_regenerated_once(self):
+        self.database.save_heaven_reading(
+            self.owner["id"],
+            "fortune",
+            "20260723",
+            "2026-07-23 观气",
+            "丙午年 · 乙未月 · 己丑日",
+            "旧版解运结果被截断……",
+            {"calendar_date": "20260723"},
+            "fortune:20260723",
+        )
+        service = DashboardService.__new__(DashboardService)
+        service.database = self.database
+        service._request_context = threading.local()
+        service._request_context.user_id = self.owner["id"]
+        setup = {
+            "calendar_date": "20260723",
+            "field": {
+                "sector_catalog": [],
+                "balance": [{"element": "火"}],
+                "pillars": {"year": "丙午", "month": "乙未", "day": "己丑"},
+            },
+        }
+
+        with patch.object(service, "heaven_setup", return_value=setup), patch.object(
+            service, "account_personal_field", return_value={}
+        ), patch.object(
+            service,
+            "_call_heaven_agent",
+            return_value=({"answer": "完整的当日解运结果", "model": "test", "latency_ms": 1}, "primary"),
+        ):
+            result = service.heaven_interpret(
+                {"mode": "fortune", "trade_date": "2026-07-23"}
+            )
+
+        self.assertFalse(result["reused"])
+        self.assertEqual(result["reading"]["answer"], "完整的当日解运结果")
+        self.assertEqual(
+            len(self.database.list_heaven_readings(self.owner["id"], "fortune")), 1
+        )
+
 
 if __name__ == "__main__":
     unittest.main()