feat: aggiunta possiblità di visualizzare un grafico temporale dei ticket, con configurazione avanzata delle serie dei dati ed esportazione dei ticket della serie.

activityDb.js

@@ -88,6 +88,55 @@ db.exec(`
   )
 `);
 
+db.exec(`
+  CREATE TABLE IF NOT EXISTS dashboard_chart_lines (
+    id           INTEGER PRIMARY KEY AUTOINCREMENT,
+    name         TEXT NOT NULL,
+    statuses     TEXT NOT NULL,
+    types        TEXT NOT NULL,
+    queues       TEXT NOT NULL,
+    owners       TEXT NOT NULL,
+    responsibles TEXT NOT NULL,
+    color        TEXT,
+    is_visible   INTEGER NOT NULL DEFAULT 1,
+    is_default   INTEGER NOT NULL DEFAULT 0,
+    created_at   TEXT NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%fZ', 'now'))
+  )
+`);
+
+try {
+  db.exec(`ALTER TABLE dashboard_chart_lines ADD COLUMN color TEXT`);
+} catch (e) {
+  // Already exists
+}
+
+try {
+  db.exec(`ALTER TABLE dashboard_chart_lines ADD COLUMN is_visible INTEGER NOT NULL DEFAULT 1`);
+} catch (e) {
+  // Already exists
+}
+
+try {
+  const countRow = db.prepare("SELECT COUNT(*) AS count FROM dashboard_chart_lines").get();
+  if (countRow && countRow.count === 0) {
+    db.prepare(`
+      INSERT INTO dashboard_chart_lines (name, statuses, types, queues, owners, responsibles, color, is_visible, is_default)
+      VALUES (?, ?, ?, ?, ?, ?, ?, 1, 1)
+    `).run('Ticket aperti', JSON.stringify([1, 4, 6, 7, 8]), '[]', '[]', '[]', '[]', '#4f46e5');
+
+    db.prepare(`
+      INSERT INTO dashboard_chart_lines (name, statuses, types, queues, owners, responsibles, color, is_visible, is_default)
+      VALUES (?, ?, ?, ?, ?, ?, ?, 1, 1)
+    `).run('Ticket chiusi', JSON.stringify([2, 3, 10]), '[]', '[]', '[]', '[]', '#10b981');
+  } else {
+    // Update default ones color if not set yet
+    db.prepare(`UPDATE dashboard_chart_lines SET color = '#4f46e5' WHERE name = 'Ticket aperti' AND color IS NULL`).run();
+    db.prepare(`UPDATE dashboard_chart_lines SET color = '#10b981' WHERE name = 'Ticket chiusi' AND color IS NULL`).run();
+  }
+} catch (e) {
+  console.error("Error seeding default chart lines:", e.message);
+}
+
 try {
   db.exec(`ALTER TABLE agent_settings ADD COLUMN tickets_per_page INTEGER NOT NULL DEFAULT 50`);
 } catch (e) {