Refactor capture-system-info to include detailed host environment variables (#79)

- Split Linux and macOS logic for improved maintainability.
- Capture additional host details: OS, kernel, CPU, GPU, and memory.
- Standardize state variables (`RUN.env.host.*`) for consistency.
- Add dynamic dispatch for OS-specific system info capture.

Author: edeandrea

scripts/perf-lab/helpers/os.yml

@@ -10,15 +10,28 @@ scripts:
           then:
             - set-state: RUN.os linux
 
-  capture-system-info:
-    - sh: grep '^ID=' /etc/os-release | cut -d= -f2 | tr -d '"'
+  capture-system-info-linux:
+    - sh: "hostnamectl | grep 'Operating System:' | cut -d: -f2 |  xargs"
       then:
-        - regex: ".*rhel.*"
-          then:
-            - script: check-and-install-package
-              with:
-                command: fastfetch
-                package: epel-release
+        - set-state: RUN.env.host.os
+    - sh: "hostnamectl | grep 'Hardware Model:' | cut -d: -f2 |  xargs"
+      then:
+        - set-state: RUN.env.host.type
+    - sh: "hostnamectl | grep 'Kernel:' | cut -d: -f2 |  xargs"
+      then:
+        - set-state: RUN.env.host.kernel
+    - sh: |
+        lscpu | awk -F: '/^Model name:/ {model=$2} /^CPU\(s):/ {cpus=$2} END {gsub(/^[ \t]+|[ \t]+$/, "", model); gsub(/^[ \t]+|[ \t]+$/, "", cpus); print model " (" cpus " cpus)"}'
+      then:
+        - set-state: RUN.env.host.cpu
+    - sh: "lspci | grep -iE 'vga|3d|display' | sed 's/.*: //; s/ (rev.*)$//' | head -n1"
+      then:
+        - set-state: RUN.env.host.gpu
+    - sh: free -h | grep '^Mem:' | awk '{print $2}'
+      then:
+        - set-state: RUN.env.host.memory
+
+  capture-system-info-macos:
     - script: check-and-install-package
       with:
         command: fastfetch
@@ -48,6 +61,9 @@ scripts:
       then:
         - set-state: RUN.env.host.memory
 
+  capture-system-info:
+    - script: capture-system-info-${{os}}
+
   sudo-linux:
     - sh: sudo ${{command}}