test: add EDR passenger pricing/config E2E bug-hunt harness

Hermetic E2E harness targeting pricing integrity and backoffice config:
- e2e/ docker Postgres (5544) + prepare.sh/run.sh one-command runner + HTML report
- 6 suites / 23 tests reproducing pricing, FX, wallet, refund, config and auth
  defects (see docs/ISSUES.md); docs/e2e-test-matrix.md documents the matrix
- two-tier harness (slim module boot + direct service instantiation) to work
  around the IAM/RabbitMQ/file-type boot wall
- .env.test.example tracked; loader falls back to it for fresh checkouts

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

apps/edr-passenger-api/test/setup/stubs/file-type.ts

@@ -0,0 +1,10 @@
+/**
+ * CommonJS stub for the ESM-only `file-type` package (v21). jest's CommonJS resolver cannot load
+ * the real one, and `@tria-plc/api-common`'s minio.service `require("file-type")` at import time,
+ * dragging the whole IAM stack down with it. minio.service only calls fileTypeFromBuffer when
+ * actually processing an upload — never during pricing/booking tests — so a stub is sufficient to
+ * let the full AppModule boot. Mapped via jest `moduleNameMapper` (^file-type$).
+ */
+export async function fileTypeFromBuffer(): Promise<undefined> {
+  return undefined;
+}