fix: move user_invocable to metadata for agentskills.io spec compliance

rh-developer/skills/debug-build/SKILL.md

@@ -2,7 +2,8 @@
 name: debug-build
 description: |
   Diagnose OpenShift build failures including S2I builds, Docker/Podman builds, and BuildConfig issues. Automates multi-step diagnosis: BuildConfig validation, build pod logs, registry authentication, and source repository access. Use this skill when builds fail, hang, or produce unexpected results. Triggers on /debug-build command or phrases like "build failed", "S2I error", "can't pull builder image", "can't push to registry", "build timeout".
-user_invocable: true
+metadata:
+  user_invocable: "true"
 ---
 
 # /debug-build Skill

rh-developer/skills/debug-container/SKILL.md

@@ -2,7 +2,8 @@
 name: debug-container
 description: |
   Diagnose local container issues with Podman/Docker including image pull errors, container startup failures, OOM kills, and networking problems. Automates multi-step diagnosis: container inspect, logs retrieval, image analysis, and resource constraint checking. Use this skill when containers fail to run locally before deployment. Triggers on /debug-container command or phrases like "container won't start", "podman run fails", "local container crashing", "container exits immediately".
-user_invocable: true
+metadata:
+  user_invocable: "true"
 ---
 
 # /debug-container Skill

rh-developer/skills/debug-network/SKILL.md

@@ -2,7 +2,8 @@
 name: debug-network
 description: |
   Diagnose OpenShift service connectivity issues including DNS resolution, service endpoints, route ingress, and network policies. Automates multi-step diagnosis: service endpoint verification, pod selector matching, route status, and network policy analysis. Use this skill when services can't communicate, routes return 503/502 errors, or external access fails. Triggers on /debug-network command or phrases like "can't reach service", "route returning 503", "pods can't communicate", "no endpoints".
-user_invocable: true
+metadata:
+  user_invocable: "true"
 ---
 
 # /debug-network Skill

rh-developer/skills/debug-pod/SKILL.md

@@ -2,7 +2,8 @@
 name: debug-pod
 description: |
   Diagnose pod failures on OpenShift including CrashLoopBackOff, ImagePullBackOff, OOMKilled, and pending pods. Automates multi-step diagnosis: pod status, events, logs (current + previous), and resource constraint analysis. Use this skill when pods are not running, restarting frequently, or stuck in non-ready states. Triggers on /debug-pod command or phrases like "my pod is crashing", "pod won't start", "CrashLoopBackOff", "ImagePullBackOff", "OOMKilled".
-user_invocable: true
+metadata:
+  user_invocable: "true"
 ---
 
 # /debug-pod Skill

rh-developer/skills/debug-rhel/SKILL.md

@@ -2,7 +2,8 @@
 name: debug-rhel
 description: |
   Diagnose RHEL system issues including systemd service failures, SELinux denials, firewall blocking, and system resource problems. Automates multi-step diagnosis: journalctl log analysis, SELinux denial detection (ausearch), firewall rule inspection, and systemd unit status. Use this skill when applications fail on standalone RHEL/Fedora/CentOS hosts deployed via /rhel-deploy. Triggers on /debug-rhel command or phrases like "service won't start on RHEL", "SELinux blocking", "systemd failed", "firewall blocking".
-user_invocable: true
+metadata:
+  user_invocable: "true"
 ---
 
 # /debug-rhel Skill

rh-developer/skills/validate-environment/SKILL.md

@@ -2,7 +2,8 @@
 name: validate-environment
 description: |
   Check and report the status of required tools and environment for rh-developer skills. Validates tool installation (oc, helm, podman, git, skopeo, etc.), cluster connectivity, and permissions. Use this skill before running other deployment skills to ensure prerequisites are met. Triggers on /validate-environment command or when user asks to check their environment setup.
-user_invocable: true
+metadata:
+  user_invocable: "true"
 ---
 
 # Validate Environment Skill