Hide churned trial accounts from company/health screens by default

- Companies list and Company Health now hide Expired/Canceled accounts
  whose subscription ended 14+ days ago; show/hide toggle via banner
- KPI cards on Company Health exclude churned tenants when hidden
- showChurned param threads through sort, pagination, search, and filter forms
- Powder catalog: fix missing UnitPrice on user-contributed entries;
  add back-sync to fill catalog gaps on existing matches; wire
  AiAugmentFromUrl and manual inventory Create into catalog contribute path

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

src/PowderCoating.Infrastructure/Services/CompanyListService.cs

@@ -1,5 +1,6 @@
 using Microsoft.EntityFrameworkCore;
 using PowderCoating.Core.Entities;
+using PowderCoating.Core.Enums;
 using PowderCoating.Core.Interfaces.Services;
 using PowderCoating.Infrastructure.Data;
 
@@ -21,15 +22,34 @@ public class CompanyListService : ICompanyListService
     }
 
     /// <inheritdoc/>
-    public async Task<(List<Company> Companies, int TotalCount)> GetPagedAsync(
-        string? searchTerm, string sortColumn, string sortDirection, int page, int pageSize)
+    public async Task<(List<Company> Companies, int TotalCount, int ChurnedCount)> GetPagedAsync(
+        string? searchTerm, string sortColumn, string sortDirection, int page, int pageSize,
+        bool hideChurned = true)
     {
+        var cutoff = DateTime.UtcNow.AddDays(-14);
+
+        // Always count churned regardless of hideChurned so the banner can show a number.
+        var churnedCount = await _context.Companies
+            .AsNoTracking()
+            .IgnoreQueryFilters()
+            .Where(c => !c.IsDeleted
+                && (c.SubscriptionStatus == SubscriptionStatus.Expired || c.SubscriptionStatus == SubscriptionStatus.Canceled)
+                && c.SubscriptionEndDate != null
+                && c.SubscriptionEndDate < cutoff)
+            .CountAsync();
+
         var query = _context.Companies
             .AsNoTracking()
             .IgnoreQueryFilters()
             .Where(c => !c.IsDeleted)
             .AsQueryable();
 
+        if (hideChurned)
+            query = query.Where(c =>
+                !((c.SubscriptionStatus == SubscriptionStatus.Expired || c.SubscriptionStatus == SubscriptionStatus.Canceled)
+                  && c.SubscriptionEndDate != null
+                  && c.SubscriptionEndDate < cutoff));
+
         if (!string.IsNullOrWhiteSpace(searchTerm))
         {
             var s = searchTerm.ToLower();
@@ -61,7 +81,7 @@ public class CompanyListService : ICompanyListService
             .Take(pageSize)
             .ToListAsync();
 
-        return (companies, totalCount);
+        return (companies, totalCount, churnedCount);
     }
 
     /// <inheritdoc/>