feat(narayana-rath): follow book p.43 for dual lords and node years (BUG-1227~1229)

Round-7 option A is text-first, so Scorpio and Aquarius lords, the Ketu-only degree reversal, and node exaltation years now live in the Rath display layer. Scoring files stay unchanged.

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

frontend/src/lib/consultation-evidence-card.ts

@@ -592,7 +592,7 @@ function baseNatal(natal: Record<string, unknown>, gaps: string[]) {
  * report. Product 2026-10-03: card budget 12,500, with the method checklist
  * 18,500 (was 12,000 / 18,000, BUG-1160/1161).
  */
-const RATH_MD_CARD_KEYS = ["sign", "start_age", "end_age"] as const;
+const RATH_MD_CARD_KEYS = ["sign", "start_age", "end_age", "dual_lord_basis", "dual_lord_basis_en"] as const;
 
 function baseTiming(timing: Record<string, unknown>, gaps: string[]) {
   const sub = record(timing.dasha_sub_periods);

frontend/src/mastra/consultation-workflow.ts

@@ -350,7 +350,8 @@ const timingKeys = new Set([
   "algorithmlabel",
   // BUG-1218: the Sanjay Rath Narayana beside it (display only): label, start
   // sign, deciding level and the running MD.
-  "rath", "seedsign", "strengthleveldecided",
+  // BUG-1227: Scorpio / Aquarius MDs also carry the one dual-lord sentence.
+  "rath", "seedsign", "strengthleveldecided", "duallordbasis", "duallordbasisen",
 ]);
 
 const validationKeys = new Set([

frontend/tests/consult-narayana-rath-card-20261003.test.ts

@@ -43,12 +43,18 @@ function assertRathMd(workflow: Json, domain: ConsultationDomain, where: string)
   const timing = card(workflow, domain).base.timing as Json;
   const shown = timing.narayana_rath as Json;
   assert.ok(shown, `${where} narayana_rath`);
-  // Short form only: label, start sign, running MD sign and ages (red line 2).
+  // Short form: label, start sign, running MD sign and ages. Scorpio / Aquarius
+  // also carry the one dual-lord sentence (round-7, BUG-1227).
   assert.deepEqual(Object.keys(shown), ["algorithm", "seed_sign", "md"], where);
   assert.equal(shown.algorithm, rath.algorithm_label);
-  assert.equal(shown.algorithm, "Sanjay Rath 版（并列参考，未进打分与时间轴结论）");
+  assert.equal(shown.algorithm, "Sanjay Rath 版（并列参考，未进打分与时间轴结论；按原书 p.43 正文（第七轮裁定））");
   assert.equal(shown.seed_sign, rath.seed_sign);
-  assert.deepEqual(shown.md, { sign: md.sign, start_age: md.start_age, end_age: md.end_age }, where);
+  const expectedMd: Json = { sign: md.sign, start_age: md.start_age, end_age: md.end_age };
+  if (typeof md.dual_lord_basis === "string") {
+    expectedMd.dual_lord_basis = md.dual_lord_basis;
+    expectedMd.dual_lord_basis_en = md.dual_lord_basis_en;
+  }
+  assert.deepEqual(shown.md, expectedMd, where);
   // No sub-periods on the card.
   assert.equal(JSON.stringify(shown).includes("antardasha"), false, where);
   // The legacy Narayana is unchanged and still labelled.