feat: Add Redis support to all frameworks and comprehensive setup documentation

Dockerfile

@@ -40,7 +40,8 @@ RUN apt-get update \
 FROM node AS symfony
 RUN install-php-extensions \
     apcu \
-    sodium
+    sodium \
+    redis
 
 # -------------------------
 # Laravel profile
@@ -56,7 +57,8 @@ FROM base AS wordpress
 RUN install-php-extensions \
     mysqli \
     exif \
-    imagick
+    imagick \
+    redis
 
 # -------------------------
 # Magento 2 profile
@@ -67,14 +69,16 @@ RUN install-php-extensions \
     xsl \
     soap \
     bcmath \
-    sodium
+    sodium \
+    redis
 
 # -------------------------
 # OpenCart profile
 # -------------------------
 FROM base AS opencart
 RUN install-php-extensions \
-    mysqli
+    mysqli \
+    redis
 
 # Fix permissions for storage & cache (FrankenPHP runs as UID 65534 = nobody)
 RUN if [ -d /app/storage ]; then chown -R 65534:65534 /app/storage /app/bootstrap/cache; fi