Add optional Project Name field to quotes, jobs, and printed documents

- Add ProjectName (nvarchar 100, nullable) to Quote and Job entities;
  migration AddProjectNameToQuotesAndJobs applied
- Add ProjectName to all relevant DTOs: QuoteDto/Create/Update,
  JobDto/List/Create/Update, InvoiceDto (mapped from Job.ProjectName
  via AutoMapper so the invoice PDF picks it up without a separate column)
- Form field added after Customer PO in Quote Create/Edit and Job Create/Edit
- CreateJobFromQuote copies ProjectName from quote to job automatically
- Details views (Quote and Job) display Project when set
- Printable quote PDF: Project row in the quote details block
- Work order: Project row in customer/job info section
- Invoice PDF: Project shown in the Job Reference block alongside Job # and PO #

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

src/PowderCoating.Application/DTOs/Invoice/InvoiceDtos.cs

@@ -57,6 +57,7 @@ public class InvoiceDto
     public string? InternalNotes { get; set; }
     public string? Terms { get; set; }
     public string? CustomerPO { get; set; }
+    public string? ProjectName { get; set; }
     public string? ExternalReference { get; set; }
     public int? SalesTaxAccountId { get; set; }
     public string? SalesTaxAccountName { get; set; }

src/PowderCoating.Application/DTOs/Job/JobDtos.cs

@@ -52,6 +52,7 @@ public class JobDto
     public decimal DiscountValue { get; set; }
     public string? DiscountReason { get; set; }
     public string? CustomerPO { get; set; }
+    public string? ProjectName { get; set; }
     public string? SpecialInstructions { get; set; }
     public string? InternalNotes { get; set; }
     public string? Tags { get; set; }
@@ -114,6 +115,7 @@ public class JobListDto
     public string? CustomerEmail { get; set; }
     public bool CustomerNotifyByEmail { get; set; } = true;
     public string? CustomerPO { get; set; }
+    public string? ProjectName { get; set; }
     public DateTime? ScheduledDate { get; set; }
     public DateTime? DueDate { get; set; }
     public decimal FinalPrice { get; set; }
@@ -167,6 +169,7 @@ public class CreateJobDto
     [StringLength(100, ErrorMessage = "Customer PO cannot exceed 100 characters")]
     [Display(Name = "Customer PO")]
     public string? CustomerPO { get; set; }
+    public string? ProjectName { get; set; }
 
     [StringLength(2000, ErrorMessage = "Special instructions cannot exceed 2000 characters")]
     [Display(Name = "Special Instructions")]
@@ -252,6 +255,7 @@ public class UpdateJobDto
     [StringLength(100, ErrorMessage = "Customer PO cannot exceed 100 characters")]
     [Display(Name = "Customer PO")]
     public string? CustomerPO { get; set; }
+    public string? ProjectName { get; set; }
 
     [StringLength(2000, ErrorMessage = "Special instructions cannot exceed 2000 characters")]
     [Display(Name = "Special Instructions")]

src/PowderCoating.Application/DTOs/Quote/QuoteDtos.cs

@@ -107,6 +107,7 @@ public class QuoteDto
     public string? Terms { get; set; }
     public string? Notes { get; set; }
     public string? CustomerPO { get; set; }
+    public string? ProjectName { get; set; }
     public string? Tags { get; set; }
 
     // Items
@@ -234,6 +235,7 @@ public class CreateQuoteDto
     [Display(Name = "Customer PO Number")]
     [StringLength(50)]
     public string? CustomerPO { get; set; }
+    public string? ProjectName { get; set; }
 
     [Display(Name = "Tags")]
     [StringLength(500)]
@@ -376,6 +378,7 @@ public class UpdateQuoteDto
     [Display(Name = "Customer PO Number")]
     [StringLength(50)]
     public string? CustomerPO { get; set; }
+    public string? ProjectName { get; set; }
 
     [Display(Name = "Tags")]
     [StringLength(500)]