fix: PYTHONPATH in screen locker status check; sudo for steam enforcer install

docs/superpowers/evidence/fix-install-failures.json

@@ -0,0 +1,20 @@
+{
+  "intent": "Fix two failures in install_core_system.sh run: workout locker PYTHONPATH and steam enforcer sudo",
+  "scope": [
+    "python_pkg/screen_locker/install_systemd.sh",
+    "linux_configuration/install_core_system.sh"
+  ],
+  "changes": [
+    "install_systemd.sh: set PYTHONPATH to repo root before running screen_lock.py status check so python_pkg is importable",
+    "install_core_system.sh: call steam backlog enforcer installer with sudo so EUID check passes for systemd service install"
+  ],
+  "verification": [
+    {
+      "command": "shellcheck python_pkg/screen_locker/install_systemd.sh linux_configuration/install_core_system.sh",
+      "result": "pass",
+      "evidence": "no warnings"
+    }
+  ],
+  "risks": ["sudo on steam enforcer installs pip packages as root; acceptable since --break-system-packages is already used"],
+  "rollback": ["git revert HEAD"]
+}

linux_configuration/install_core_system.sh

@@ -141,7 +141,7 @@ run_installer "Midnight shutdown timer" \
 printf '\n%s\n' "$(bold "Secondary modules (${SECONDARY_MODE})…")"
 
 ask_install "Steam backlog enforcer" \
-    bash "$REPO_ROOT/python_pkg/steam_backlog_enforcer/install.sh"
+    sudo bash "$REPO_ROOT/python_pkg/steam_backlog_enforcer/install.sh"
 
 ask_install "Pacman wrapper" \
     bash "$LINUX_CONFIG/scripts/periodic_background/digital_wellbeing/pacman/install_pacman_wrapper.sh"

python_pkg/screen_locker/install_systemd.sh

@@ -89,4 +89,4 @@ fi
 # Immediately check if today's workout is done; block if not
 echo ""
 echo "=== Checking today's workout status ==="
-python3 "$SCREEN_LOCK_PATH" --production
+PYTHONPATH="$(cd "$SCRIPT_DIR/../.." && pwd)" python3 "$SCREEN_LOCK_PATH" --production