feat(hub): add period date range and trade stats to inner-light-mind

Support today/week/month/custom range selection with sick count, PnL, and per-exchange breakdown; update docs.

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

manual_trading_hub/static/app.css

@@ -5570,6 +5570,41 @@ body.funds-fullscreen-open {
   padding: 12px;
   min-height: 100%;
 }
+.archive-period-bar {
+  flex-wrap: wrap;
+}
+.archive-period-tabs {
+  display: inline-flex;
+  gap: 4px;
+}
+.archive-period-btn {
+  padding: 5px 10px;
+  border-radius: 8px;
+  border: 1px solid var(--border-soft);
+  background: var(--inset-surface);
+  color: var(--muted);
+  cursor: pointer;
+  font-family: var(--font);
+  font-size: 0.8rem;
+}
+.archive-period-btn.is-active {
+  color: var(--text);
+  border-color: var(--accent);
+  background: color-mix(in srgb, var(--accent) 12%, transparent);
+}
+.archive-period-range {
+  display: inline-flex;
+  align-items: center;
+  gap: 4px;
+}
+.archive-period-range.hidden,
+.archive-period-day-input.hidden {
+  display: none;
+}
+.archive-period-sep {
+  color: var(--muted);
+  font-size: 0.82rem;
+}
 .archive-stats-bar {
   padding: 10px 12px;
   border-radius: 8px;
@@ -5578,6 +5613,13 @@ body.funds-fullscreen-open {
   font-size: 0.82rem;
   color: var(--text);
   line-height: 1.45;
+  display: flex;
+  flex-direction: column;
+  gap: 4px;
+}
+.archive-stats-sub {
+  font-size: 0.78rem;
+  color: var(--muted);
 }
 .archive-acc-section {
   border: 1px solid var(--border-soft);