Move .env into skills/ for easy install

- Added skills/_env_loader.py - shared env loader for all scripts
- Updated 17 scripts to use load_unified_env()
- Updated install-skills.sh to copy .env into skills/
- Updated README with simpler OpenClaw install instructions
- .env in skills/ is gitignored (credentials stay private)

scripts/install-skills.sh

@@ -151,10 +151,11 @@ setup_unified_env() {
     fi
 }
 
-# Copy unified .env to global location
+# Copy unified .env to global location and into skills/
 copy_unified_env() {
     local source_env="${REPO_ROOT}/.env"
     local target_env="${GLOBAL_DIR}/.env"
+    local skills_env="${SKILLS_DIR}/.env"
     
     if [ -f "$source_env" ]; then
         print_info "Copying unified .env to global location..."
@@ -162,6 +163,11 @@ copy_unified_env() {
         cp "$source_env" "$target_env"
         chmod 600 "$target_env"
         print_success "Created: ${target_env}"
+        
+        print_info "Copying .env into skills/ folder..."
+        cp "$source_env" "$skills_env"
+        chmod 600 "$skills_env"
+        print_success "Created: ${skills_env}"
         echo ""
     fi
 }
@@ -266,26 +272,7 @@ main() {
     copy_unified_env
     
     # Create skill-specific .env files that reference unified .env
-    print_info "Creating skill configuration files..."
-    
-    for skill in $SKILLS; do
-        dest="${TARGET}/${skill}"
-        scripts_dir="${dest}/scripts"
-        
-        [ -d "$scripts_dir" ] || continue
-        
-        # Create .env file that tells script where to find unified .env
-        cat > "${scripts_dir}/.env" << EOF
-# AUTO-GENERATED - DO NOT EDIT
-# This skill uses the unified .env file
-# Location: ${GLOBAL_DIR}/.env
-#
-# Edit that file instead to update credentials.
-# This file is overwritten on each install.
-EOF
-        
-        chmod 600 "${scripts_dir}/.env"
-    done
+    # (No longer needed - .env is in skills/ folder)
     
     print_success "All skills configured"
     echo ""