feat: Phase 3c — dose logging + adherence, profile management, tests

Three workstreams, all backend+frontend (per scope decisions):

Dose logging + real adherence (backend + frontend):
* log_dose now returns the created dose (201 + body) instead of an empty 201.
* get_adherence implemented for real: queries the medication_doses collection
  over the last 30 days, counts taken vs total, computes the rate. The previous
  implementation hardcoded zeros. Removed the dead calculate_adherence stub.
* Frontend: fixed DoseLog type to match backend MedicationDose (taken:bool,
  loggedAt, camelCase); added AdherenceStats + LogDoseRequest types; logDose() +
  getAdherence() in api.ts; loadAdherence/logDose actions in the medication
  store (adherence cache keyed by med id); new DoseLogger component (Taken/
  Skipped buttons + LinearProgress adherence bar) embedded in each
  MedicationManager card.

Profile management (backend + frontend):
* New GET/PUT /api/profiles/me endpoints (ProfileResponse excludes encryption
  fields; find_by_user_id + update_name on ProfileRepository).
* Register auto-creates a default 'patient' profile (deterministic profile_id =
  profile_<user_id>) — this is the contract the frontend relies on.
* Frontend: Profile type; getProfile()/updateProfileName() in api.ts; useProfileStore;
  new ProfileEditor component (view/edit name, shows role) as a 4th Dashboard tab.
* Resolved the MedicationManager profile_id TODO: now derives profile_<user_id>
  instead of the 'default' fallback.
* NOTE: profile name is stored plaintext (the model anticipates encryption via
  nameIv/nameAuthTag but no crypto layer is implemented yet — TODO).

Vitest tests:
* Added @testing-library/user-event; setupTests clears localStorage + cleanup
  between tests; new test/mockStore.ts helper (mocks the co-located stores,
  handles both selector and no-selector call patterns).
* 5 test files, 20 tests: SeverityChip (4), useMedicationStore actions incl.
  loadMedications/createMedication/logDose (4), MedicationManager render+dialog
  (5), InteractionsChecker selection+results (4), HealthStats table+dialog (3).

Verified: backend cargo fmt/build/clippy 0 warnings, 19 unit tests pass;
frontend npm build clean, 20 vitest tests pass. Solaria round-trip confirmed:
profile auto-created on register (GET /profiles/me), PUT updates name, dose log
returns the dose body, adherence computes 66.7% for 2-taken/1-skipped.

KNOWN FOLLOW-UP (separate task): the backend Medication list response is deeply
nested + camelCase + stores fields inside medicationData.data; the frontend
Medication type assumes flat top-level snake_case fields. This pre-dates Phase 3c
and affects the whole MedicationManager — needs a backend serialization fix or a
frontend adapter.

web/normogen-web/src/components/health/HealthStats.test.tsx

@@ -0,0 +1,59 @@
+import { describe, it, expect, beforeEach, vi } from 'vitest';
+import { render, screen, fireEvent } from '@testing-library/react';
+import { mockStoreFactory, setMockStore, resetMockStore } from '../../test/mockStore';
+
+vi.mock('../../store/useStore', () => mockStoreFactory());
+
+const { HealthStats } = await import('./HealthStats');
+
+const healthActions = {
+  loadStats: vi.fn(),
+  createStat: vi.fn(),
+  updateStat: vi.fn(),
+  deleteStat: vi.fn(),
+  loadTrends: vi.fn(),
+  clearError: vi.fn(),
+  isLoading: false,
+  error: null,
+  stats: [],
+  trends: [],
+};
+
+describe('HealthStats', () => {
+  beforeEach(() => resetMockStore());
+
+  it('shows the empty state when there are no readings', () => {
+    setMockStore({ useHealthStore: { ...healthActions } });
+    render(<HealthStats />);
+    expect(screen.getByText(/No health readings yet/i)).toBeInTheDocument();
+  });
+
+  it('renders the readings table when stats exist', () => {
+    setMockStore({
+      useHealthStore: {
+        ...healthActions,
+        stats: [
+          {
+            stat_id: 's1',
+            stat_type: 'weight',
+            value: 78.5,
+            unit: 'kg',
+            measured_at: '2026-06-01T10:00:00.000Z',
+          },
+        ],
+      },
+    });
+    render(<HealthStats />);
+    // "weight" appears in both the chart selector and the table; the value
+    // string is unique to the table cell.
+    expect(screen.getByText('78.5 kg')).toBeInTheDocument();
+    expect(screen.getByText('Jun 1, 07:00')).toBeInTheDocument();
+  });
+
+  it('opens the record dialog when Record is clicked', () => {
+    setMockStore({ useHealthStore: { ...healthActions } });
+    render(<HealthStats />);
+    fireEvent.click(screen.getByText('Record'));
+    expect(screen.getByText('Record a measurement')).toBeInTheDocument();
+  });
+});