feat(reference-curator): Add Claude.ai Projects export format

Add claude-project/ folder with skill files formatted for upload to
Claude.ai Projects (web interface):

- reference-curator-complete.md: All 6 skills consolidated
- INDEX.md: Overview and workflow documentation
- Individual skill files (01-06) without YAML frontmatter

Add --claude-ai option to install.sh:
- Lists available files for upload
- Optionally copies to custom destination directory
- Provides upload instructions for Claude.ai

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

custom-skills/90-reference-curator/install.sh

@@ -717,6 +717,65 @@ EOF
     post_install
 }
 
+# ============================================================================
+# Export for Claude.ai Projects
+# ============================================================================
+
+export_claude_ai() {
+    print_header
+    echo -e "${BOLD}Export for Claude.ai Projects${NC}"
+    echo ""
+
+    local project_dir="$SCRIPT_DIR/claude-project"
+
+    if [[ ! -d "$project_dir" ]]; then
+        print_error "claude-project directory not found"
+        echo "Expected: $project_dir"
+        exit 1
+    fi
+
+    echo "Available files for Claude.ai Projects:"
+    echo ""
+    echo -e "  ${CYAN}Consolidated (single file):${NC}"
+    echo "    reference-curator-complete.md  - All 6 skills in one file"
+    echo ""
+    echo -e "  ${CYAN}Individual skills:${NC}"
+    ls -1 "$project_dir"/*.md 2>/dev/null | while read file; do
+        local filename=$(basename "$file")
+        local size=$(du -h "$file" | cut -f1)
+        if [[ "$filename" != "INDEX.md" && "$filename" != "reference-curator-complete.md" ]]; then
+            echo "    $filename ($size)"
+        fi
+    done
+    echo ""
+
+    echo -e "${BOLD}Upload to Claude.ai:${NC}"
+    echo ""
+    echo "  1. Go to https://claude.ai"
+    echo "  2. Create a new Project or open existing one"
+    echo "  3. Click 'Add to project knowledge'"
+    echo "  4. Upload files from:"
+    echo -e "     ${CYAN}$project_dir${NC}"
+    echo ""
+    echo "  Recommended: Upload 'reference-curator-complete.md' for full skill set"
+    echo ""
+
+    if prompt_yes_no "Copy files to a different location?" "n"; then
+        prompt_with_default "Destination directory" "$HOME/Desktop/reference-curator-claude-ai" "DEST_DIR"
+
+        mkdir -p "$DEST_DIR"
+        cp "$project_dir"/*.md "$DEST_DIR/"
+
+        print_success "Files copied to $DEST_DIR"
+        echo ""
+        echo "Files ready for upload:"
+        ls -la "$DEST_DIR"/*.md
+    fi
+
+    echo ""
+    echo -e "${GREEN}Done!${NC} Upload the files to your Claude.ai Project."
+}
+
 # ============================================================================
 # Entry Point
 # ============================================================================
@@ -731,6 +790,9 @@ case "${1:-}" in
     --minimal)
         install_minimal
         ;;
+    --claude-ai)
+        export_claude_ai
+        ;;
     --help|-h)
         echo "Reference Curator - Portable Installation Script"
         echo ""
@@ -738,6 +800,7 @@ case "${1:-}" in
         echo "  ./install.sh              Interactive installation"
         echo "  ./install.sh --check      Check installation status"
         echo "  ./install.sh --minimal    Firecrawl-only mode (no MySQL)"
+        echo "  ./install.sh --claude-ai  Export skills for Claude.ai Projects"
         echo "  ./install.sh --uninstall  Remove installation"
         echo "  ./install.sh --help       Show this help"
         ;;