feat(settings,reports): six ayanamsa options; report-scope solid button colours (T6/T7, BUG-1078)

T6: offer True Citra and Fagan-Bradley beside Raman/Lahiri/KP/True Pushya,
engine-supported values only; widen profiles_ayanamsa_check by an additive
migration; ephemeris note names; path tests so no new value falls back to
Raman.

T7: the unlayered `button { color: inherit; }` beats Tailwind's
text-primary-foreground, so solid report buttons showed page ink (light
(light 4.85:1, dark 5.77:1), grey disabled without fade, neutral selected
preset. button.tsx and theme tokens unchanged.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017eEAG8HD3mm8gsKXgk8uU8

frontend/src/lib/ayanamsa.ts

@@ -1,4 +1,11 @@
-export const AYANAMSA_VALUES = ["raman", "lahiri", "kp", "true_pushya"] as const;
+export const AYANAMSA_VALUES = [
+  "raman",
+  "lahiri",
+  "kp",
+  "true_citra",
+  "true_pushya",
+  "fagan_bradley",
+] as const;
 export type AyanamsaName = (typeof AYANAMSA_VALUES)[number];
 export const DEFAULT_AYANAMSA: AyanamsaName = "raman";
 
@@ -18,11 +25,21 @@ export const AYANAMSA_OPTIONS = [
     label: "KP",
     description: "克里希那穆提体系用的岁差。",
   },
+  {
+    value: "true_citra",
+    label: "True Citra",
+    description: "以角宿一的实际位置定起点，和 Lahiri 只差约 1 角分。",
+  },
   {
     value: "true_pushya",
     label: "True Pushya",
     description: "True Pushya 岁差。",
   },
+  {
+    value: "fagan_bradley",
+    label: "Fagan-Bradley",
+    description: "西方恒星占星常用，比 Lahiri 多约 0.9°。",
+  },
 ] as const satisfies ReadonlyArray<{
   value: AyanamsaName;
   label: string;
@@ -43,6 +60,7 @@ export function resolveAyanamsa(
   if (typeof raw === "string") {
     const key = raw.trim().toLowerCase().replace(/-/g, "_");
     if (key === "krishnamurti" || key === "krishnamurti_paddhati") return "kp";
+    if (key === "true_chitra") return "true_citra";
     if (isAyanamsaName(key)) return key;
   }
   return DEFAULT_AYANAMSA;

frontend/src/lib/ephemeris-view.ts

@@ -263,7 +263,9 @@ const AYANAMSA_SHORT_NAME: Readonly<Record<AyanamsaName, string>> = {
   raman: "Raman",
   lahiri: "Lahiri",
   kp: "KP",
+  true_citra: "True Citra",
   true_pushya: "True Pushya",
+  fagan_bradley: "Fagan-Bradley",
 };
 
 /**