Add timeclock break/lunch tracking, manual entries, and attendance period picker

- ClockEntryType enum (Work/Break/Lunch) on EmployeeClockEntry; default 0 = Work
  so all existing entries are unaffected
- Migration AddClockEntryType applied
- Break and Lunch buttons on clock status card (only when AllowMultiplePunchesPerDay
  is enabled); GoOnBreak closes current Work segment and opens Break/Lunch segment
- Return to Work button when on break/lunch; closes break segment, opens new Work
- Status badges on clock card and Who'\''s In grid: Working / On Break / At Lunch
- Break/Lunch hours excluded from all day totals, week totals, metrics, and CSV
- Manager: Manual Entry modal to create a time entry for any company employee
- Attendance report defaults to current ISO week; Week/Month mode toggle with
  auto-submitting dropdowns (last 12 weeks or months); period label shown inline
- Attendance CSV: Type column added; day/week totals blank on Break/Lunch rows;
  filename uses period label
- Week subtotal rows suppressed in single-week view (shown in month view only)
- Help article and AI knowledge base updated for all new features

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/PowderCoating.Infrastructure/Migrations/ApplicationDbContextModelSnapshot.cs

@@ -3075,6 +3075,9 @@ namespace PowderCoating.Infrastructure.Migrations
                     b.Property<string>("DeletedBy")
                         .HasColumnType("nvarchar(max)");
 
+                    b.Property<int>("EntryType")
+                        .HasColumnType("int");
+
                     b.Property<decimal?>("HoursWorked")
                         .HasColumnType("decimal(18,2)");
 
@@ -6865,7 +6868,7 @@ namespace PowderCoating.Infrastructure.Migrations
                         {
                             Id = 1,
                             CompanyId = 0,
-                            CreatedAt = new DateTime(2026, 5, 27, 4, 18, 51, 784, DateTimeKind.Utc).AddTicks(3772),
+                            CreatedAt = new DateTime(2026, 5, 27, 12, 41, 26, 605, DateTimeKind.Utc).AddTicks(3040),
                             Description = "Standard pricing for regular customers",
                             DiscountPercent = 0m,
                             IsActive = true,
@@ -6876,7 +6879,7 @@ namespace PowderCoating.Infrastructure.Migrations
                         {
                             Id = 2,
                             CompanyId = 0,
-                            CreatedAt = new DateTime(2026, 5, 27, 4, 18, 51, 784, DateTimeKind.Utc).AddTicks(3777),
+                            CreatedAt = new DateTime(2026, 5, 27, 12, 41, 26, 605, DateTimeKind.Utc).AddTicks(3052),
                             Description = "5% discount for preferred customers",
                             DiscountPercent = 5m,
                             IsActive = true,
@@ -6887,7 +6890,7 @@ namespace PowderCoating.Infrastructure.Migrations
                         {
                             Id = 3,
                             CompanyId = 0,
-                            CreatedAt = new DateTime(2026, 5, 27, 4, 18, 51, 784, DateTimeKind.Utc).AddTicks(3779),
+                            CreatedAt = new DateTime(2026, 5, 27, 12, 41, 26, 605, DateTimeKind.Utc).AddTicks(3054),
                             Description = "10% discount for premium customers",
                             DiscountPercent = 10m,
                             IsActive = true,