fix(chart): skip unused synastry overview and doomed report subprocesses

Synastry charts now skip the unused external overview and run together. Reports skip PyJHora subprocesses when that library is missing, and a full heavy-compute slot logs which paths hold it. Splitting quotas stays a simulation.

Gate, growth, and report pytest passed, as did the frontend route tests, tsc, lint, and the A/B script.

Co-Authored-By: Grok (agent loop)
Co-authored-by: Cursor <cursoragent@cursor.com>

frontend/src/app/api/synastry/route.ts

@@ -183,8 +183,10 @@ export async function POST(request: Request) {
       synastryBirthPayload(globalBirthProfileFromAccountRow(selfResolved.row)),
       synastryBirthPayload(globalBirthProfileFromAccountRow(partnerResolved.row)),
     ]);
-    const selfChart = await postPython("/api/chart", selfPayload);
-    const partnerChart = await postPython("/api/chart", partnerPayload);
+    const [selfChart, partnerChart] = await Promise.all([
+      postPython("/api/chart", { ...selfPayload, skip_vedastro_main_entry_overview: true }),
+      postPython("/api/chart", { ...partnerPayload, skip_vedastro_main_entry_overview: true }),
+    ]);
     const relationshipType = parsed.data.relationshipType === "business" || parsed.data.relationshipType === "family" || parsed.data.relationshipType === "general"
       ? parsed.data.relationshipType
       : "romance";
@@ -210,18 +212,20 @@ export async function POST(request: Request) {
         message: "该关系类型尚无可验证的专用合盘计算合同；已保留问题草稿。",
       });
     }
-    const selfD9 = await postPython("/api/varga_full", {
-      ...selfPayload,
-      planets: selfChart.planets,
-      ascendant: selfChart.ascendant,
-      divisions: ["D9"],
-    });
-    const partnerD9 = await postPython("/api/varga_full", {
-      ...partnerPayload,
-      planets: partnerChart.planets,
-      ascendant: partnerChart.ascendant,
-      divisions: ["D9"],
-    });
+    const [selfD9, partnerD9] = await Promise.all([
+      postPython("/api/varga_full", {
+        ...selfPayload,
+        planets: selfChart.planets,
+        ascendant: selfChart.ascendant,
+        divisions: ["D9"],
+      }),
+      postPython("/api/varga_full", {
+        ...partnerPayload,
+        planets: partnerChart.planets,
+        ascendant: partnerChart.ascendant,
+        divisions: ["D9"],
+      }),
+    ]);
     const synastry = await postPython("/api/synastry", {
       male_moon: moonLongitude(selfChart),
       female_moon: moonLongitude(partnerChart),