fix(ui): close consistency-audit contrast and duplication findings

Today hero's top-signal delta used opacity-on-muted text, landing below
AA on the app's most prominent card; five mood charts and the sleep-
stage IN_BED fill painted raw --dracula-*/hardcoded-hex hues with no
(or an unused) light-theme counterpart. Route all of them through
existing semantic/chart tokens instead (destructive/warning/success,
chart-1..5, and a newly minted --chart-inbed with its own Alucard
override) so every hue is AA-tuned per theme.

Also collapses three duplicated primitives the audit flagged: the
click-Popover VitalsInfoTip and hover-Tooltip InfoHint merge into one
touch-first ui/info-popover; MedicationViewToggle and ModuleViewToggle
were verbatim copy-paste and now wrap one shared ui/view-toggle; the
triplicated sport-icon map (already drifted — mixedCardio rendered a
different glyph in the list vs the detail/dashboard views) moves to
lib/workouts/sport-icons.ts with HeartPulse as the settled icon.

Adds a no-restricted-imports lint rule banning direct recharts imports
outside the chart-runtime barrel, catching the bundle-duplication
mistake at local lint instead of PR-CI.

src/app/globals.css

@@ -160,6 +160,17 @@
   --dracula-red: #ff5555;
   --dracula-yellow: #f1fa8c;
   --dracula-lavender: #d6acff;
+  /*
+   * v1.28.17 — the sleep-stage IN_BED fill. Distinct from `--dracula-comment`
+   * above (an orphaned token — no `@theme` utility was ever generated for
+   * it, per the `confidence-badge.ts` note — and its `#9aa3b3` value never
+   * matched the classic Dracula "Comment" blue-grey this chart actually
+   * paints). Minted here instead of retuning the unrelated token, so this
+   * default carries the exact hex the stacked bar hardcoded before
+   * (`#6272a4`) and the light override below (`:root.light`) is this
+   * token's own AA-tuned counterpart.
+   */
+  --chart-inbed: #6272a4;
 
   /*
    * Semantic feedback tokens (see @theme `--color-success` / `--color-warning`
@@ -378,6 +389,9 @@
   /* Lavender has no semantic twin; a violet one step lighter than purple,
    * AA-tuned — 4.97:1 card / 4.63:1 bg. */
   --dracula-lavender: #7c50e0;
+  /* IN_BED sleep-stage fill (see the `:root` default above) — same
+   * blue-grey hue family, darkened for AA — 6.66:1 card / 6.03:1 bg. */
+  --chart-inbed: #4a5b8a;
   --sidebar: oklch(0.988 0.003 300);
   --sidebar-foreground: oklch(0.3 0.012 295);
   --sidebar-primary: #644ac9;