Demo data realism + invoice resend via SMS on any status

Seed data fixes:
- Fix EF interceptor: no longer overwrites explicitly-set CreatedAt on Added
  entities — root cause of all "same month" chart issues
- Customer seeder: generates 15 customers/month from Jan → current month;
  keeps 10 commercial anchors in deterministic order for job seeder index map
- Invoice seeder: historical range bumped from 2→8 paid invoices/month so
  P&L shows consistent profit (~$5,200 collected vs ~$4,200 monthly expenses)
- Month -1 bumped to 7 paid invoices to stay above expenses
- Jobs: set UpdatedAt to historical event date so analytics don't need null fallback
- Analytics (ReportsController): use CompletedDate ?? UpdatedAt ?? CreatedAt for
  revenue chart grouping; fixes empty Revenue Trend charts on Overview/Revenue tabs
- SeedDataService: inject IAccountBalanceService; auto-recalculate account balances
  after seeding; patch checking/savings opening balances unconditionally on reset
- Customer list: sort by CompanyName ?? ContactLastName so individuals and
  commercial accounts interleave instead of appearing as two blocks

Invoice resend:
- ResendInvoice action now accepts sendEmail + sendSms parameters; SMS-only
  resend no longer requires an email address on file
- Ensures PublicViewToken exists before SMS so the view link is always valid
- canResend in Details view now allows Paid invoices (removed != Paid guard)
- Resend button shows channel-choice modal when customer has both email + SMS,
  direct SMS button when SMS only, or email button when email only
- New #resendChannelModal mirrors the Send channel modal but posts to ResendInvoice
- resendInvoice() JS updated to pass sendEmail/sendSms query params

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

src/PowderCoating.Infrastructure/Services/SeedDataService.InventoryTransactions.cs

@@ -54,17 +54,25 @@ public partial class SeedDataService
 
         if (items.Count == 0) return 0;
 
-        // Load completed/delivered jobs to generate usage transactions against
-        var completedJobs = await _context.Set<Job>()
+        // Two-query approach: resolve status IDs first to avoid Include() navigation
+        // returning null when global query filters interact with IgnoreQueryFilters().
+        var completedStatusIds = await _context.Set<JobStatusLookup>()
             .IgnoreQueryFilters()
-            .Where(j => j.CompanyId == company.Id && !j.IsDeleted
-                && (j.JobStatus.StatusCode == "COMPLETED"
-                    || j.JobStatus.StatusCode == "READY_FOR_PICKUP"
-                    || j.JobStatus.StatusCode == "DELIVERED"))
-            .Include(j => j.JobStatus)
-            .OrderBy(j => j.Id)
+            .Where(s => s.CompanyId == company.Id
+                && new[] { "COMPLETED", "READY_FOR_PICKUP", "DELIVERED" }.Contains(s.StatusCode))
+            .Select(s => s.Id)
             .ToListAsync();
 
+        var completedJobs = completedStatusIds.Count == 0
+            ? new List<Job>()
+            : await _context.Set<Job>()
+                .IgnoreQueryFilters()
+                .Where(j => j.CompanyId == company.Id && !j.IsDeleted
+                            && completedStatusIds.Contains(j.JobStatusId))
+                .Include(j => j.JobItems)
+                .OrderBy(j => j.Id)
+                .ToListAsync();
+
         var now    = DateTime.UtcNow;
         var seeded = 0;
         var txns   = new List<InventoryTransaction>();
@@ -90,14 +98,18 @@ public partial class SeedDataService
             });
         }
 
-        // ── Purchase transactions — 3 months of restocks ──────────────────────
-        // Simulate monthly powder purchases for top items
-        var powderItems = items.Take(8).ToList(); // focus on powder coat items
-
-        foreach (var (offset, qtyMult) in new (int daysAgo, decimal mult)[] {
-            (85, 1.2m), (55, 1.0m), (25, 0.9m) })
+        // ── Purchase transactions — 12 months of monthly restocks ────────────
+        var powderItems = items.Take(8).ToList();
+        // Quantities vary slightly month to month to give the inventory chart a natural shape
+        var purchaseOffsets = new (int daysAgo, decimal mult)[]
         {
-            foreach (var item in powderItems.Take(4)) // 4 items per purchase cycle
+            (365, 0.80m), (335, 0.85m), (305, 0.90m), (275, 0.95m),
+            (245, 1.00m), (215, 1.05m), (185, 1.10m), (155, 1.10m),
+            (125, 1.00m), ( 95, 1.10m), ( 65, 1.00m), ( 35, 0.95m)
+        };
+        foreach (var (offset, qtyMult) in purchaseOffsets)
+        {
+            foreach (var item in powderItems.Take(4))
             {
                 var qty = Math.Round(25m * qtyMult, 0);
                 txns.Add(new InventoryTransaction
@@ -144,9 +156,10 @@ public partial class SeedDataService
 
         foreach (var (job, idx) in completedJobs.Select((j, i) => (j, i)))
         {
-            // Completed date spread: most within the last 60 days
-            var daysAgo = 10 + (idx % 55);
-            var usageDate = now.AddDays(-daysAgo);
+            // Use the job's actual completion date so powder usage history spans the same
+            // 12-month window as jobs, giving the Powder Usage report non-trivial data in
+            // every month rather than clustering everything in the last 60 days.
+            var usageDate = (job.CompletedDate ?? job.ScheduledDate ?? now.AddDays(-30)).Date;
 
             // Pick a color-matched powder item (or rotate)
             var firstItem = job.JobItems?.FirstOrDefault();