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/DESIGN.md

@@ -304,8 +304,8 @@ Both chat surfaces pin a new turn at its head instead of following the last stre
 
 The self-profile editor in 星盘资料 (`ChartLibraryPanel`) owns the ayanamsa radios. Personal 个人资料 stays account basics only.
 
-- **Structure:** four 44px stacked radios reused from `.theme-preference-option`, plus a caption under the group. Raman is marked 默认. Each option has a one-line description; selected rows show the same `Check` as the theme panel.
-- **Values:** `raman` (default) / `lahiri` / `kp` / `true_pushya`. Copy lives in `frontend/src/lib/ayanamsa.ts`.
+- **Structure:** six 44px stacked radios reused from `.theme-preference-option`, plus a caption under the group. Raman is marked 默认. Each option has a one-line description; selected rows show the same `Check` as the theme panel.
+- **Values (2026-09-28):** `raman` (default) / `lahiri` / `kp` / `true_citra` / `true_pushya` / `fagan_bradley`, shown as Raman（默认）/ Lahiri / KP / True Citra / True Pushya / Fagan-Bradley. Only values the engine already supports (`scripts/ayanamsa_utils.py`); Djwhal Khul and Sassanian are supported by the engine but deliberately not offered. The label is spelled True Citra, matching the engine's `ayanamsa_display` that the chart page parameter table shows. Copy lives in `frontend/src/lib/ayanamsa.ts`; `profiles_ayanamsa_check` lists the same six.
 - **Hint:** “之后的咨询、报告、星盘库和每日星语会按新岁差算。生时校正目前仍固定按 Raman，之后的版本才会跟着这项设置走。”
 - **Placement:** after `ProfileFields` on the self-profile form only. Not on other-chart save, not on `page.tsx`.
 - **States:** default, hover, selected (`aria-checked` only), keyboard focus. Switching does not clear a confirmed birth minute.
@@ -543,6 +543,7 @@ one skeleton, none of them carrying the sidebar.
 
 ### Personal report reader
 
+- **Buttons on the report surfaces (2026-09-28, BUG-1078):** the list, the reader with its export dialog, and the loading / state / error / not-found screens restyle the shared `Button` locally; `components/ui/button.tsx` and the theme tokens are untouched, so other pages keep the shared primary. Cause: the unlayered `button { color: inherit; }` beats Tailwind's layered `text-primary-foreground`, so a solid `<button>` shows the page ink — #1d1d1f on #a9583e in light (3.33:1, the reported black-on-dark-red) and #f2f0ea on #d78064 in dark (2.57:1); `<Button render={<Link/>}>` renders an `<a>` and was never affected. Solid (`variant="default"`) now sets its own label colour: light #fbfaf7 on `--color-action` #a9583e (4.85:1); dark `--color-ink` #f2f0ea on `--color-action-on-dark` #8f4a33 (5.77:1), hover mixes 6% ink in (5.1:1). Disabled, any variant: `--color-canvas-strong` fill + `--color-ink-tertiary`, opacity 1 instead of the global 45% fade. The selected export preset is `--color-canvas-muted` + `--color-ink` + a `--color-ink-secondary` edge, not the `--color-action-soft` fill (a red-brown block in dark mode).
 - **分块导出对话框 (2026-09-24):** native modal `<dialog>`, bottom-aligned below 860px and centered at ≥860px, app colours only. Desktop is viewport-centered (`inset: 0; margin: auto`) regardless of sidebar state, width `min(720px, 92vw)`, max-height 80vh, with full `--radius-lg` corners. Its flex panel is capped at `calc(80vh - 2px)` to reserve the dialog border; desktop rules follow the narrow-screen dvh upgrade so 70dvh cannot override them. Below 860px the content-column offset, bottom alignment and at most 70vh/70dvh remain unchanged. Header and single export footer stay visible; the block list scrolls, two columns at the existing 860px breakpoint. Escape, backdrop or 关闭 dismisses; focus returns without scrolling. All controls have 44px targets. No spinner, clipboard or extra fetch.
 - **Export selection:** default 常用 selects every body block from the single outline's lossless source slices (lead = 摘要); 全部分盘 and 仅核对表 replace the selection. Manual toggles clear preset highlighting. 全选 / 取消全选 works across all groups; zero selected disables export. Counts are actual Unicode code points in serialized block text, including SVG markup, not approximate prose counts.
 - **Export content:** full body alone remains byte-identical to the retired ordinary Markdown export. Selected chart/table blocks append new content; selecting all groups is not byte-identical to body-only. D13 requires safe SVG in each chart, reusing the projected engine SVG or the existing hook-free Vedic drawing; offline fallback uses readable monochrome glyphs/legend and presentation attributes. No chart JSON fences or internal audit fields. Fact-table labels/precision/subtables match the reader. Full body uses the historical filename; excerpt adds `-节选`. The existing downloader appends `.md`.
@@ -1104,7 +1105,7 @@ D40 / D45 / D60 的表格上方，出生时间不是「已校正」时多一句
   - **先中文、后梵文。** 主行中文，副行 12px 三级色写引擎原名（`lang="sa-Latn"`）。中文名只来自 `src/lib/panchanga-names-zh.ts`，该表逐字抄自任务书附表，不自行翻译、不增删；匹配忽略大小写、空格、连字符，别名只有 Garija/Gara、Dwitiya/Dvitiya、Shashthi/Shashti。表里查不到的名字原样显示梵文、不出副行，并在控制台记一次 `panchanga_name_zh_missing`。星期接口里本来就是中文，不出副行。接口字段不变：`factor.value` 仍是引擎名，中文在视图层投影。§15 行星表「没有中文宿名表就不造一个」仍只管星盘页；星历这张表是产品在任务书里给定的。
   - **吉 / 中 / 凶是行右侧的彩色小标签**（`.ephemeris-quality`）：吉 `--color-success`、凶 `--color-danger`、中 `--color-warning`，底是同色 `color-mix(… 12%, transparent)`。只照搬引擎标签，不写成建议。
   - **卡片顶部当日总评 + 计数。** 一句 `{月相短语}，{整体}{Vishti 追加}。`，按固定规则拼（`panchangaDaySummary`，纯函数，不调模型）：Purnima「满月之日」、Amavasya「新月之日」、其余白分「月亮渐盈」、黑分「月亮渐亏」；吉 ≥ 4「整体吉」、3「整体偏吉」、2「吉凶参半」、≤ 1「整体偏凶」，中不计入；迦那为 Vishti 时追加「；迦那落在毗湿提，重要的事避开」。下面两枚计数标签「N 吉」「M 凶」。五要素或其中任一吉凶缺项时，总评和计数都不出，只显示已有行。
-  - 卡片下固定一行岁差说明，按资料实际岁差填名：「五要素按 Lahiri 岁差算，和星盘页的 {Raman / KP / True Pushya} 不同。」资料就是 Lahiri 时写「和星盘页相同」，读不到资料岁差时只写前半句。行运段不加这句。
+  - 卡片下固定一行岁差说明，按资料实际岁差填名：「五要素按 Lahiri 岁差算，和星盘页的 {Raman / KP / True Citra / True Pushya / Fagan-Bradley} 不同。」资料就是 Lahiri 时写「和星盘页相同」，读不到资料岁差时只写前半句。行运段不加这句。
 - **当日行运（2026-09-26）：** 每行是一个 `li`：左 1.75rem 彩色行星符号（复用 `--color-planet-*`，与星盘页行星表同色、同字体栈）+「{行星} 在 {星座}」+ 副行「落你的第 N 宫」（仅 `natalRelativeAvailable` 为真时）与逆行时的「逆行」+ 右侧等宽度数（度°分′，`tabular-nums`）。桌面与手机同一行式，不再有表头和 `data-label` 堆叠。没有本命上升时副行不写宫位，段首写「还没有本命上升，先不写落在你的第几宫。」
 - **未来九十天：** 按日期升序只写事实（「某星 进入 某座」「某星 停滞转顺 · 度数」）。`/api/ephemeris_events` 未上线时整段静态说明：「换座和停滞还没接上。这一页其余部分不受影响。」不得让整页失败。
 - **出口（2026-09-26 挪位）：** 「带这天去提问」不在顶栏了。页面最底部一张浅色提示卡 `.ephemeris-ask-card`（`--color-action-soft` 底、`--radius-lg`、宽度与段落卡一致）：左侧「想问这一天适不适合做某件事？」，右侧主按钮「带这天去提问」（44px），行为不变——把当前日期预填进对话草稿并回到 `/`。窄屏时问句自己折行，按钮不变宽。不写「这一页是天象本身，不是对你的判断。」