feat(freight-api): replace canned reports with a generic report engine

Nuke the 17 hand-written raw-SQL reports (no pagination, hard LIMITs) and
the reports module built around them. Replace with a resolver contract:
a report declares columns/filters/permission and a TypeORM QueryBuilder;
ReportRunnerService applies filtering, a whitelisted sort, offset/limit
paging, and a COUNT(*) FROM (query) wrapper for the total (getCount() is
wrong for GROUP BY). ReportExportService re-runs the same resolver
unpaginated for xlsx (exceljs) and pdf (existing PdfRenderService, now
landscape-capable) exports.

Ships with 4 reports: bookings-list, revenue-by-customer,
aging-receivables, contract-utilization. Catalog + per-report permission
checks live in the controller; adding a report is one new definitions/
file plus a REPORT_KEYS entry, no frontend change.

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

@@ -18,6 +18,8 @@ const PDF_PRINT_STYLES = `
 export interface PdfRenderOptions {
   /** Label used in logs to identify the document kind. */
   label?: string;
+  /** Landscape A4 instead of the default portrait — wide tables need it. */
+  landscape?: boolean;
   /**
    * Degraded renderer used when Chromium is unavailable. Receives the
    * print-prepared HTML and must return a valid PDF buffer (≥ 2KB, `%PDF-`
@@ -59,6 +61,7 @@ export class PdfRenderService {
 
         const pdf = await page.pdf({
           format: "A4",
+          landscape: opts.landscape ?? false,
           printBackground: true,
           margin: { top: "16mm", bottom: "18mm", left: "14mm", right: "14mm" },
         });