feat: add production templates API and documentation for manufacturing phase 2

- Implemented CRUD operations for production templates, including listing, retrieving, creating, updating, and deactivating templates.
- Introduced a new API contract for production runs, detailing the lifecycle from creation to completion, including handling of stock inputs and outputs.
- Documented the architecture, requirements, entity model, and API contract for the manufacturing phase 2, ensuring clarity on the production process and its integration with existing systems.

Backend/ERPCore/Program.cs

@@ -10,6 +10,7 @@ using ERPCore.Services;
 using ERPCore.Services.Auth;
 using ERPCore.Services.Hrm;
 using ERPCore.Services.Interfaces;
+using ERPCore.Services.Production;
 using ERPCore.Services.Stock;
 using ERPCore.System.Errors;
 using Microsoft.AspNetCore.Authentication;
@@ -81,6 +82,7 @@ builder.Services.AddScoped<IRfqService, RfqService>();
 builder.Services.AddScoped<IPurchaseOrderService, PurchaseOrderService>();
 
 // Stock core + goods receipt (docs/11 §4–5)
+builder.Services.AddScoped<IUomConverter, UomConverter>();
 builder.Services.AddScoped<IFifoCostingService, FifoCostingService>();
 builder.Services.AddScoped<IStockService, StockService>();
 builder.Services.AddScoped<IGrnService, GrnService>();
@@ -136,12 +138,22 @@ builder.Services.AddScoped<IPayslipService, PayslipService>();
 // HRM: Reports (docs/13-BACKEND-HRM-API.md §6) — read-only, no new entities
 builder.Services.AddScoped<IHrReportService, HrReportService>();
 
+// Manufacturing / Production Lines (docs/30-BACKEND-PHASE2.md Part A). Templates stand
+// alone; runs consume FifoCostingService for all stock movement. ProductionGraphValidator
+// is deliberately unregistered — it is a pure static algorithm, not an injected service.
+builder.Services.AddScoped<IProductionTemplateService, ProductionTemplateService>();
+builder.Services.AddScoped<IProductionRunService, ProductionRunService>();
+
 // Health checks (EF Core DB)
 builder.Services.AddHealthChecks().AddDbContextCheck<ErpDbContext>();
 
 // Swagger / OpenAPI (Swashbuckle v10 → OpenAPI 3.1)
 builder.Services.AddEndpointsApiExplorer();
-builder.Services.AddSwaggerGen(o => o.SwaggerDoc("v1", new OpenApiInfo { Title = "ERPCore API", Version = "v1" }));
+builder.Services.AddSwaggerGen(o =>
+{
+    o.SwaggerDoc("v1", new OpenApiInfo { Title = "ERPCore API", Version = "v1" });
+    o.CustomSchemaIds(t => t.FullName!.Replace("+", "."));
+});
 
 var app = builder.Build();