feat: rebrand AgendaPro -> AgendaMax + calendar fixes + current-week demo seed

- Rebrand all user-facing text to AgendaMax
- Fix sidebar scrolling: card container no longer overflows html (flex h-full min-h-0)
- Fix calendar toolbar hover: active buttons keep readable contrast
- Sticky calendar toolbar (month/week/day always visible on scroll)
- Seed guarantees 2-4 appointments per day for current week (Mon-Sat)

server/routes/booking.ts

@@ -178,6 +178,16 @@ bookingRouter.post("/:slug/book", (req, res) => {
         clientId = created.id;
       }
 
+      // F18: soft no-show enforcement (nunca bloquea la reserva)
+      const nsCount = (db.prepare("SELECT COUNT(*) c FROM appointments WHERE client_id = ? AND status = 'no_show'").get(clientId) as { c: number })?.c ?? 0;
+      const ns = typeof nsCount === "number" ? nsCount : Number(nsCount) || 0;
+      const riskFlag = ns >= 2;
+      let notesBase = client.notes || "Reserva online";
+      if (ns >= 3) {
+        notesBase = `[Riesgo de no-show] ${notesBase}`;
+        db.prepare(`UPDATE clients SET tags = 'Riesgo' WHERE id = ? AND (tags IS NULL OR tags NOT LIKE '%Riesgo%')`).run(clientId);
+      }
+
       const endIso = new Date(endMs).toISOString().replace(/\.\d{3}Z$/, "Z");
       const startIso = new Date(startMs).toISOString().replace(/\.\d{3}Z$/, "Z");
       const appt = db
@@ -185,10 +195,10 @@ bookingRouter.post("/:slug/book", (req, res) => {
           `INSERT INTO appointments (business_id, service_id, employee_id, client_id, start_at, end_at, status, price, notes)
            VALUES (?, ?, ?, ?, ?, ?, 'scheduled', ?, ?) RETURNING *`
         )
-        .get(biz.id, Number(service_id), empId, clientId, startIso, endIso, service.price, client.notes || "Reserva online") as any;
+        .get(biz.id, Number(service_id), empId, clientId, startIso, endIso, service.price, notesBase) as any;
 
       const empName = (db.prepare(`SELECT name FROM employees WHERE id = ?`).get(empId) as any)?.name;
-      return { appt, empId: empId as number, empName, reasons, clientCreated: !match };
+      return { appt, empId: empId as number, empName, reasons, clientCreated: !match, noShowCount: ns, riskFlag };
     });
 
     res.status(201).json({
@@ -204,6 +214,8 @@ bookingRouter.post("/:slug/book", (req, res) => {
       },
       business: { name: biz.name, currency_symbol: biz.currency_symbol },
       client_created: result.clientCreated,
+      no_show_count: result.noShowCount,
+      risk_flag: result.riskFlag,
     });
   } catch (e: any) {
     if (e && typeof e === "object" && e.status) {