frontend: pharmacy inventory, lab add-result & analysis charts

- Pharmacy: the sidebar entry now expands into Pharmacy + a new Inventory page
  (searchable medication stock with derived in-stock/low/out availability,
  backed by /api/inventory). Fix the dispensing-queue "Expiring" badge so it
  only flags courses ending within the next 7 days, not ones already elapsed.
- Lab "Add analysis result": the patient picker no longer lists patients until
  you type and supports arrow-key + Enter selection; the test field offers a
  catalog of common analyses with an Advanced option (custom analysis + ref
  range); submitted results now show immediately in a Recent results feed.
- Analysis: add a Live panel (real-time line chart) and replace the flat trend
  sparklines with bklit-ui area + bar charts (installed from the @bklit shadcn
  registry; chart CSS variables wired into the theme for light and dark).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

frontend/components/charts/motion-utils.ts

@@ -0,0 +1,58 @@
+import type { Transition } from "motion/react";
+import { DEFAULT_CHART_ENTER_TRANSITION } from "./animation";
+
+export function transitionWithDelay(
+  transition: Transition | undefined,
+  delaySeconds: number,
+  fallback: Transition = DEFAULT_CHART_ENTER_TRANSITION
+): Transition {
+  const base = transition ?? fallback;
+  return { ...base, delay: delaySeconds };
+}
+
+export interface SpringOptions {
+  stiffness: number;
+  damping: number;
+  mass?: number;
+}
+
+export function springOptionsFromTransition(
+  transition?: Transition,
+  fallback: SpringOptions = { stiffness: 60, damping: 20 }
+): SpringOptions {
+  if (!transition) {
+    return fallback;
+  }
+  if (transition.type === "spring") {
+    const bounce =
+      typeof transition.bounce === "number" ? transition.bounce : undefined;
+    const baseStiffness =
+      typeof transition.stiffness === "number"
+        ? transition.stiffness
+        : fallback.stiffness;
+    const baseDamping =
+      typeof transition.damping === "number"
+        ? transition.damping
+        : fallback.damping;
+    return {
+      stiffness:
+        bounce == null
+          ? baseStiffness
+          : Math.min(400, Math.max(80, baseStiffness * (1 + bounce * 0.35))),
+      damping:
+        bounce == null
+          ? baseDamping
+          : Math.max(8, baseDamping * (1 - bounce * 0.25)),
+      mass:
+        typeof transition.mass === "number" ? transition.mass : fallback.mass,
+    };
+  }
+  const duration =
+    "duration" in transition && typeof transition.duration === "number"
+      ? transition.duration
+      : 0.8;
+  return {
+    stiffness: Math.min(500, Math.max(40, 280 / duration)),
+    damping: Math.min(40, Math.max(12, 18 + duration * 4)),
+  };
+}