feat: enrich dashboard filters and feedback

src/lib/dashboard-filters.test.ts

@@ -10,6 +10,7 @@ describe('dashboard filters', () => {
 
     expect(parseDashboardFilters(query, terminals)).toEqual({
       range: 'month',
+      period: '',
       terminal: 'all',
       status: 'all',
       minAmount: null,
@@ -29,6 +30,34 @@ describe('dashboard filters', () => {
     },
   );
 
+  it('keeps an offered reporting period in the copied URL without dropping other filters', () => {
+    const filters = parseDashboardFilters(
+      new URLSearchParams('range=month&period=jm-1405-05&terminal=T83&status=Verified'),
+      terminals,
+    );
+
+    expect(filters.period).toBe('jm-1405-05');
+
+    const next = setDashboardQuery(
+      new URL('https://example.test/transactions?range=month&terminal=T83&status=Verified'),
+      { period: filters.period },
+    );
+
+    expect(next.searchParams.get('period')).toBe('jm-1405-05');
+    expect(next.searchParams.get('range')).toBe('month');
+    expect(next.searchParams.get('terminal')).toBe('T83');
+    expect(next.searchParams.get('status')).toBe('Verified');
+  });
+
+  it('rejects reporting period identifiers outside the server formats', () => {
+    const filters = parseDashboardFilters(
+      new URLSearchParams('range=day&period=javascript:alert(1)'),
+      terminals,
+    );
+
+    expect(filters.period).toBe('');
+  });
+
   it('normalizes an inverted amount range', () => {
     const filters = parseDashboardFilters(
       new URLSearchParams('minAmount=900000&maxAmount=100000'),