fix(deploy): automatically download .agents/skills from Gitea if missing in installer

deploy/install.sh

@@ -44,6 +44,19 @@ fi
 
 # --- 2. Workspace Setup ---
 cd "$TARGET_DIR"
+
+# Download .agents/skills if missing (for curl one-liner installs)
+if [ ! -d ".agents/skills" ]; then
+  echo "📥 .agents/skills not found. Fetching from Gitea repository..."
+  if command -v git &>/dev/null && [ -z "$(ls -A 2>/dev/null || echo "")" ]; then
+    echo "🌐 Cloning Gitea repository..."
+    git clone "https://git.godopu.com/tmpl/multi-agent-mux.git" .
+  else
+    echo "🌐 Downloading and extracting skills archive..."
+    curl -fsSL "https://git.godopu.com/tmpl/multi-agent-mux/archive/main.tar.gz" | tar -xz --strip-components=1
+  fi
+fi
+
 echo "📂 Ensuring metadata directory structure (.mam/)..."
 mkdir -p .mam/jobs .mam/delegate_job_logs