fix(compose): wire ANALYSIS_OCR_MAX_DECODE_PIXELS into the backend service

The OCR decompression-bomb guard added the env var to .env.example and
config.rs but not docker-compose.yml, so the container never received it
and the compose-env-coverage test failed once the branches were integrated.

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

frontend/package.json

@@ -1,6 +1,6 @@
 {
   "name": "mangalord-frontend",
-  "version": "0.93.0",
+  "version": "0.93.1",
   "private": true,
   "type": "module",
   "scripts": {