feat: 档案统计独立卡片、共用交易日历与四所统计页日历

内照明心统计表移至顶部卡片，右侧为日历/图表/交易记录；日历样式适配浅深主题，四所统计分析页同步展示按月盈亏日历。

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

static/trade_stats_calendar.css

@@ -0,0 +1,127 @@
+/* 交易日历：内照明心 + 四所统计分析共用，随 data-theme 浅/深切换 */
+.trade-cal-wrap {
+  --trade-cal-wrap-bg: var(--inset-surface, rgba(0, 0, 0, 0.22));
+  --trade-cal-cell-bg: var(--section-surface, var(--inset-surface, rgba(0, 0, 0, 0.32)));
+  --trade-cal-cell-hover-bg: color-mix(in srgb, var(--accent, #6366f1) 12%, var(--trade-cal-cell-bg));
+  --trade-cal-cell-hover-border: color-mix(in srgb, var(--accent, #6366f1) 45%, transparent);
+  --trade-cal-selected-border: color-mix(in srgb, var(--accent, #6366f1) 75%, transparent);
+  --trade-cal-selected-shadow: color-mix(in srgb, var(--accent, #6366f1) 35%, transparent);
+  --trade-cal-sick-bg: color-mix(in srgb, var(--red, #ef4444) 14%, var(--trade-cal-cell-bg));
+  --trade-cal-sick-border: color-mix(in srgb, var(--red, #ef4444) 55%, transparent);
+  --trade-cal-sick-shadow: color-mix(in srgb, var(--red, #ef4444) 45%, transparent);
+  --trade-cal-sick-tag-bg: color-mix(in srgb, var(--red, #ef4444) 25%, transparent);
+  --trade-cal-sick-tag-fg: color-mix(in srgb, var(--red, #ef4444) 70%, #fff);
+  --trade-cal-pos: var(--green, #22c55e);
+  --trade-cal-neg: var(--red, #ef4444);
+  margin-top: 4px;
+  padding: 10px 12px;
+  border-radius: 10px;
+  border: 1px solid var(--border-soft, rgba(120, 140, 200, 0.28));
+  background: var(--trade-cal-wrap-bg);
+}
+.stats-calendar-wrap {
+  margin-bottom: 14px;
+}
+.trade-cal-head {
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  gap: 12px;
+  margin-bottom: 8px;
+}
+.trade-cal-title {
+  font-size: 0.95rem;
+  font-weight: 600;
+  min-width: 120px;
+  text-align: center;
+  color: var(--text, #e8ecff);
+}
+.trade-cal-weekdays {
+  display: grid;
+  grid-template-columns: repeat(7, 1fr);
+  gap: 4px;
+  margin-bottom: 4px;
+}
+.trade-cal-wd {
+  text-align: center;
+  font-size: 0.72rem;
+  color: var(--muted, #8892b0);
+}
+.trade-cal-grid {
+  display: grid;
+  grid-template-columns: repeat(7, 1fr);
+  gap: 4px;
+}
+.trade-cal-cell {
+  min-height: 62px;
+  padding: 4px 3px;
+  border-radius: 8px;
+  border: 1px solid transparent;
+  background: var(--trade-cal-cell-bg);
+  color: inherit;
+  font: inherit;
+  cursor: default;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  justify-content: flex-start;
+  gap: 2px;
+}
+.trade-cal-cell.has-trade {
+  cursor: pointer;
+}
+.trade-cal-cell.has-trade:hover {
+  border-color: var(--trade-cal-cell-hover-border);
+  background: var(--trade-cal-cell-hover-bg);
+}
+.trade-cal-cell.is-selected {
+  border-color: var(--trade-cal-selected-border);
+  box-shadow: 0 0 0 1px var(--trade-cal-selected-shadow);
+}
+.trade-cal-cell.is-sick-day {
+  border-color: var(--trade-cal-sick-border);
+  background: var(--trade-cal-sick-bg);
+}
+.trade-cal-cell.is-sick-day.is-selected {
+  box-shadow: 0 0 0 2px var(--trade-cal-sick-shadow);
+}
+.trade-cal-cell.pnl-pos .trade-cal-pnl {
+  color: var(--trade-cal-pos);
+}
+.trade-cal-cell.pnl-neg .trade-cal-pnl {
+  color: var(--trade-cal-neg);
+}
+.trade-cal-day-num {
+  font-size: 0.78rem;
+  font-weight: 600;
+  color: var(--text, #e8ecff);
+}
+.trade-cal-pnl {
+  font-size: 0.72rem;
+  font-weight: 600;
+  line-height: 1.1;
+}
+.trade-cal-cnt {
+  font-size: 0.65rem;
+  color: var(--muted, #8892b0);
+}
+.trade-cal-sick-tag {
+  font-size: 0.62rem;
+  padding: 1px 4px;
+  border-radius: 4px;
+  background: var(--trade-cal-sick-tag-bg);
+  color: var(--trade-cal-sick-tag-fg);
+  font-weight: 600;
+}
+.trade-cal-pad {
+  background: transparent;
+  border: none;
+  min-height: 0;
+}
+
+html[data-theme="light"] .trade-cal-wrap {
+  --trade-cal-wrap-bg: var(--inset-surface, #eef3f8);
+  --trade-cal-cell-bg: var(--section-surface, #f6f9fc);
+  --trade-cal-cell-hover-bg: color-mix(in srgb, var(--accent, #2563eb) 10%, #f6f9fc);
+  --trade-cal-sick-tag-fg: #b91c1c;
+}