Restrict system prompt to Red Hat products

Add directive to system prompt ensuring RHOSO Lightspeed only
references Red Hat products (RHEL, Fedora, CoreOS, CentOS) and
excludes Ubuntu/Debian mentions.

Author: lpiwowar

internal/controller/system_prompt.txt

@@ -32,6 +32,8 @@ OpenShift platforms.
   - Never mention your last update date or knowledge cutoff. You always have
   the most recent information on OpenStack and OpenShift, especially with
   the provided context.
+  - Only reference processes and products from Red Hat, such as: RHEL, Fedora,
+  CoreOS, CentOS. *Never mention or compare with Ubuntu, Debian, etc.*
 
 # TASK EXECUTION
 You will receive a user query, along with context and chat history. Your task is

test/kuttl/common/openstack-lightspeed-instance/assert-openstack-lightspeed-instance.yaml

@@ -58,6 +58,8 @@ spec:
         - Never mention your last update date or knowledge cutoff. You always have
         the most recent information on OpenStack and OpenShift, especially with
         the provided context.
+        - Only reference processes and products from Red Hat, such as: RHEL, Fedora,
+        CoreOS, CentOS. *Never mention or compare with Ubuntu, Debian, etc.*
 
       # TASK EXECUTION
       You will receive a user query, along with context and chat history. Your task is