Add troubleshooting tips to docker-compose.yml

Added a new section under `services` in `docker-compose.yml`
to provide guidance for common issues. Included Q&A entries
for resolving problems like environment variables not being
applied and changes not reflecting after a rebuild. These
updates aim to improve developer experience and debugging.

Author: dariemcarlosdev

docker-compose.yml

@@ -169,4 +169,10 @@ services:
 # Q: "Container crashes immediately"
 # A: Run "docker-compose logs securecleanapiwaf" to see error messages
 #
+# Q: "Environment variable not applied"
+# A: Ensure no typos and restart container after changes
+#
+# Q: "Changes not reflected after rebuild"
+# A: Ensure no cached layers are used: docker-compose build --no-cache
+
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