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/line-loading-timing.ts

@@ -0,0 +1,12 @@
+export const LINE_LOADING_PULSE_CYCLE_S = 2.2;
+
+/** Idle gap before the loading line pulse restarts (milliseconds). */
+export const LINE_LOADING_LOOP_PAUSE_MS = 280;
+
+/** Loading label exit on loading → ready (seconds). */
+export const LOADING_LABEL_EXIT_S = 0.45;
+
+/** Loading label drops this many pixels while exiting. */
+export const LOADING_LABEL_EXIT_Y_PX = 30;
+
+export const LINE_LOADING_PULSE_EASE = [0.85, 0, 0.15, 1] as const;