Add learn.sh: install skills from .skill-list to workspace/skills

learn.sh

@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+if [[ -z "${AGENT_WORKSPACE:-}" ]]; then
+  echo "Error: script must be executed by pcexec"
+  exit 1
+fi
+
+SKILL_LIST="${AGENT_WORKSPACE}/.skill-list"
+TARGET_DIR="${AGENT_WORKSPACE}/skills"
+CLAW_DIR="$(cd "$(dirname "$0")" && pwd)"
+
+if [[ ! -f "$SKILL_LIST" ]]; then
+  echo "Error: .skill-list not found at $SKILL_LIST"
+  exit 1
+fi
+
+mkdir -p "$TARGET_DIR"
+
+while IFS= read -r skill_name || [[ -n "$skill_name" ]]; do
+  [[ -z "$skill_name" || "$skill_name" == \#* ]] && continue
+
+  skill_dir="${CLAW_DIR}/${skill_name}"
+  if [[ -d "$skill_dir" ]]; then
+    echo "Installing: $skill_name"
+    cp -r "$skill_dir" "${TARGET_DIR}/"
+  else
+    echo "Skipping (not found): $skill_name"
+  fi
+done < "$SKILL_LIST"
+
+echo "Done."