Ports the pdfplumber-based parser from the (currently inactive) n8n
workflow legal-aid-report-ingest.json so EspoCRM's GreenInvoiceBilling
extension can do manual upload + dry-run preview of monthly Legal Aid
payment reports without depending on n8n being live.
Auth: X-Api-Key (matches admin_kb pattern).
Response shape: same JSON the existing LegalAidPaymentReportService
ingest pipeline expects, so the EspoCRM controller can hand it
straight back to ::ingest($payload, $pdf, dryRun=true).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
