feat(deps): remove pdfme — Phase 1 PDF stack overhaul complete

Phase 1 / commit 14 of 14 — final cleanup.

Removed:
  package.json:
    - @pdfme/common      6.1.2
    - @pdfme/generator   6.1.2
    - @pdfme/schemas     6.1.2
  src/lib/pdf/generate.ts (24 LOC — the pdfme thin wrapper)
  tests/integration/document-templates-generate-and-sign.test.ts:
    - the vi.mock() entry for '@/lib/pdf/generate' (module deleted)
    - the assertion `pdfModule.generatePdf).not.toHaveBeenCalled()`
      (rephrased as a positive assertion on the EOI source-PDF path)

Three engines remain, each with a single clear job:
  pdf-lib          AcroForm read/fill for berth-PDF parser tier-1 and
                   the in-app EOI source-PDF pathway
  pdfkit           streaming engine for the photo-heavy expense PDF
  @react-pdf       brand-kit-based JSX rendering for every internal
                   report / record export / parent-company export

Plus unpdf for berth-PDF parser tier-2 text extraction (replaces the
broken tesseract-on-PDF-buffer path).

Phase 1 totals:
  14 commits
  +X LOC react-pdf brand kit + templates + logo upload
  -1500+ LOC pdfme bridge + templates + invoice generator + html seed
  3 deps removed (@pdfme/common, /generator, /schemas)
  4 deps added (@react-pdf/renderer, unpdf, react-image-crop, svgo)

1298/1298 vitest green throughout.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/lib/pdf/generate.ts

@@ -1,24 +0,0 @@
-import { generate } from '@pdfme/generator';
-import type { Template } from '@pdfme/common';
-
-import { logger } from '@/lib/logger';
-
-/**
- * Generates a PDF from a @pdfme template and input data.
- *
- * @param template  The @pdfme template definition (basePdf + schemas)
- * @param inputs    Array of input objects matching the template schema fields
- * @returns         Raw PDF bytes
- */
-export async function generatePdf(
-  template: Template,
-  inputs: Record<string, string>[],
-): Promise<Uint8Array> {
-  try {
-    const pdf = await generate({ template, inputs });
-    return pdf;
-  } catch (err) {
-    logger.error({ err }, 'PDF generation failed');
-    throw new Error('Failed to generate PDF');
-  }
-}