feat(injector-protocols): full module — resource + PDF export via Browsershot

Implements the injector diagnostic protocol module per spec:
- Migration: injector_protocols + injector_protocol_rows with company_id
  (multi-tenant), vehicle_id (not car_id — this CRM uses Vehicle),
  master_id FK to users, snapshot fields (car_model/plate/vin/mileage/year/
  injector_brand) captured at protocol time.
- Models with BelongsToTenant; auto-generate protocol_number as
  PS-{tenantId}-{year}-{seq6}; auto-seed 8 empty rows on create.
- Permissions: injector_protocols.view + injector_protocols.conclude.
  Default roles: owner/admin (both), manager (both), receptionist (view
  only), mechanic (both). Test permission count updated 52→54.
- InjectorProtocolResource under Service nav group with 4 sections:
  data auto+client (with client_id/vehicle_id lookups auto-filling
  snapshot fields), reason checkboxes, 8-row repeater for measurements
  (Repeater with position hidden; fixed 8, non-addable/deletable),
  conclusion + comment + master signature.
- Table with columns, badge filters, PDF action.
- Blade PDF template: pixel-close to reference (graphite/gold/blue
  brand tokens, striped rows, rotated 'ФОРСУНКИ' header).
- Route /app/injector-protocols/{id}/pdf with permission gate,
  streams PDF via new InjectorProtocolPdfService (Browsershot).
- Dockerfile: install nodejs 22 + chromium + noto fonts + puppeteer-core
  in /opt/browsershot; env vars for Browsershot binary paths.
- +71 RU/EN translations covering resource + PDF template.

All 306 tests pass.

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

Dockerfile

@@ -46,13 +46,32 @@ RUN install-php-extensions \
     mbstring \
     gmp
 
-# System tools
+# System tools + Chromium + Node.js (for spatie/browsershot PDF rendering)
 RUN apt-get update && apt-get install -y --no-install-recommends \
     git \
     unzip \
     curl \
+    ca-certificates \
+    gnupg \
+    chromium \
+    fonts-liberation \
+    fonts-noto \
+    fonts-noto-cjk \
+ && curl -fsSL https://deb.nodesource.com/setup_22.x | bash - \
+ && apt-get install -y --no-install-recommends nodejs \
  && rm -rf /var/lib/apt/lists/*
 
+# Puppeteer + Browsershot deps live in a shared node_modules under /app
+# so Browsershot can spawn `node`+puppeteer bundled with Chromium bindings.
+RUN mkdir -p /opt/browsershot && cd /opt/browsershot \
+ && npm install --omit=dev puppeteer-core@23 \
+ && chown -R www-data:www-data /opt/browsershot
+
+ENV BROWSERSHOT_NODE_BINARY=/usr/bin/node \
+    BROWSERSHOT_NPM_BINARY=/usr/bin/npm \
+    BROWSERSHOT_NODE_MODULE_PATH=/opt/browsershot/node_modules \
+    BROWSERSHOT_CHROME_PATH=/usr/bin/chromium
+
 # Copy application code
 COPY --link . /app
 # Composer vendor from stage 1