chore: add missing READMEs

src/redis/.env.example

@@ -1,11 +1,25 @@
+# Global registry prefix for all images (optional)
+GLOBAL_REGISTRY=
+
 # Redis version
 REDIS_VERSION=8.2.1-alpine3.22
 
 # Password for Redis authentication (leave empty for no password)
-REDIS_PASSWORD=passw0rd
+REDIS_PASSWORD=
 
 # Port to bind to on the host machine
 REDIS_PORT_OVERRIDE=6379
 
 # Timezone (e.g., UTC, Asia/Shanghai, America/New_York)
 TZ=UTC
+
+# Skip permission fixing (set to 1 to skip)
+SKIP_FIX_PERMS=
+
+# CPU limits
+REDIS_CPU_LIMIT=0.50
+REDIS_CPU_RESERVATION=0.25
+
+# Memory limits
+REDIS_MEMORY_LIMIT=256M
+REDIS_MEMORY_RESERVATION=128M