test: e2e sur FreshRSS 1.30.4 (repli, marquage lu au scroll)

Corrige aussi la hauteur repliée (box-sizing: border-box) : le padding
de .text s'ajoutait à la hauteur configurée.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/e2e/docker-compose.yml

@@ -0,0 +1,33 @@
+# Test environment: FreshRSS pinned to the production version + a static feed server.
+name: freshrss-read-more-e2e
+services:
+  freshrss:
+    image: freshrss/freshrss:1.30.4
+    ports:
+      - "8080:80"
+    volumes:
+      - ../..:/var/www/FreshRSS/extensions/freshrss-read-more:ro
+    environment:
+      TZ: Europe/Paris
+      INTERNAL_HOST_ALLOWLIST: "feeds:80"
+      FRESHRSS_INSTALL: |-
+        --default-user test
+        --auth-type none
+        --db-type sqlite
+        --base-url http://localhost:8080
+        --language fr
+      FRESHRSS_USER: |-
+        --user test
+        --password testtest1
+        --language fr
+    healthcheck:
+      test: ["CMD", "cli/health.php"]
+      interval: 3s
+      timeout: 10s
+      retries: 30
+    depends_on:
+      - feeds
+  feeds:
+    image: nginx:alpine
+    volumes:
+      - ./fixtures:/usr/share/nginx/html:ro