feat(algo): slotsPerDay parameter for top-N selection

js/algorithm.js

@@ -77,7 +77,8 @@ function scoreCandidate(employee, isoDate, allHistory, randomFn) {
 }
 
 // Returns { assignments: [{ date, employeeId, manual: false }], skippedDates: [] }
-export function generatePlan(workdays, employees, history, randomFn = Math.random) {
+// slotsPerDay controls how many top-scored candidates are picked per day (default 1).
+export function generatePlan(workdays, employees, history, randomFn = Math.random, slotsPerDay = 1) {
   const monthAssignments = [];
   const skippedDates = [];
 
@@ -91,7 +92,10 @@ export function generatePlan(workdays, employees, history, randomFn = Math.rando
       .map(e => ({ employee: e, score: scoreCandidate(e, date, history, randomFn) }))
       .sort((a, b) => b.score - a.score);
 
-    monthAssignments.push({ date, employeeId: scored[0].employee.id, manual: false });
+    const take = Math.min(slotsPerDay, scored.length);
+    for (let i = 0; i < take; i++) {
+      monthAssignments.push({ date, employeeId: scored[i].employee.id, manual: false });
+    }
   }
 
   return { assignments: monthAssignments, skippedDates };