feat: implement shipping line bookings management

- Add ShippingLineBookingsPage for listing and managing shipping line bookings.
- Create ShippingLineDocumentsModal for document uploads related to bookings.
- Introduce ShippingLineInitiateModal for initiating new shipping line bookings.
- Implement booking document state management with booking-doc-state utility.
- Add shipping line bookings service for API interactions.
- Update index to export new components and services.
- Enhance types for freight to include shipping line credits.

apps/edr-freight-api/src/modules/billing/billing.service.ts

@@ -112,8 +112,16 @@ export interface GenerateInvoiceInput {
   sourceId: string;
   /** What the invoice is for (e.g. "prepaid", "credit"). */
   type: string;
-  companyId: string;
-  companyProfileId: string;
+  /** The customer billed. Omit only when billing a shipping line instead. */
+  companyId?: string | null;
+  companyProfileId?: string | null;
+  /**
+   * The shipping line billed, for an invoice covering batched shipping-line
+   * credits. Mutually exclusive with `companyId` — the DB enforces this via
+   * `chk_invoices_single_payer`, and {@link createInvoice} rejects a payload
+   * setting both or neither before it ever reaches the constraint.
+   */
+  shippingLineCompanyId?: string | null;
   lines: InvoiceLineInput[];
   currency?: string;
   /** Explicit pre-tax subtotal; defaults to the sum of line amounts. */
@@ -139,8 +147,11 @@ export interface InvoiceEventPayload {
   source: Freight.InvoiceSource;
   sourceId: string;
   type: string;
-  companyId: string;
-  companyProfileId: string;
+  /** Null when the payer is a shipping line rather than a customer company. */
+  companyId: string | null;
+  companyProfileId: string | null;
+  /** Set only on shipping-line invoices; mutually exclusive with `companyId`. */
+  shippingLineCompanyId?: string | null;
   totalAmount: number;
   currency: string;
   status: Freight.InvoiceStatus;
@@ -609,7 +620,6 @@ export class BillingService {
     input: GenerateInvoiceInput,
     manager?: EntityManager,
   ): Promise<Invoice & { lines: InvoiceLine[] }> {
-    console.log("oooooooooo", input);
     const run = (mg: EntityManager) => this.createInvoice(input, mg);
     return manager ? run(manager) : this.dataSource.transaction(run);
   }
@@ -622,6 +632,21 @@ export class BillingService {
     const status = input.status ?? Freight.InvoiceStatus.Pending;
     const issued = status !== Freight.InvoiceStatus.Draft;
 
+    // Exactly one payer, checked here so a bad payload fails with a clear
+    // message instead of a raw `chk_invoices_single_payer` violation.
+    const billsCompany = Boolean(input.companyId);
+    const billsShippingLine = Boolean(input.shippingLineCompanyId);
+    if (billsCompany === billsShippingLine) {
+      throw new BadRequestException(
+        "An invoice must be billed to exactly one payer: either companyId or shippingLineCompanyId.",
+      );
+    }
+    if (billsCompany && !input.companyProfileId) {
+      throw new BadRequestException(
+        "companyProfileId is required when billing a company.",
+      );
+    }
+
     const lines = input.lines.map((l) => {
       const quantity = l.quantity ?? 1;
       const unitRate = l.unitRate ?? 0;
@@ -657,8 +682,9 @@ export class BillingService {
         source: input.source,
         sourceId: input.sourceId,
         type: input.type,
-        companyId: input.companyId,
-        companyProfileId: input.companyProfileId,
+        companyId: input.companyId ?? null,
+        companyProfileId: input.companyProfileId ?? null,
+        shippingLineCompanyId: input.shippingLineCompanyId ?? null,
         subtotalAmount: round2(subtotalAmount),
         taxAmount: round2(taxAmount),
         totalAmount: round2(totalAmount),
@@ -988,6 +1014,7 @@ export class BillingService {
       type: invoice.type,
       companyId: invoice.companyId,
       companyProfileId: invoice.companyProfileId,
+      shippingLineCompanyId: invoice.shippingLineCompanyId ?? null,
       totalAmount: invoice.totalAmount,
       currency: invoice.currency,
       status: invoice.status,