feat(install): add Forgejo Runner install/uninstall to Forgejo submenu

- Add FORGEJO_RUNNER_DIR, FORGEJO_RUNNER_CONTAINER, FORGEJO_RUNNER_IMAGE constants
- do_forgejo_runner_install: prompts for Forgejo URL and token, registers
  runner with ubuntu-latest/ubuntu-22.04 Docker labels, starts daemon
- do_forgejo_runner_uninstall: stops/removes container and data directory
- Extend Forgejo submenu to 6 options (added Install/Uninstall Runner)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

install.sh

@@ -18,6 +18,10 @@ FORGEJO_CONTAINER_NAME="forgejo"
 FORGEJO_IMAGE="codeberg.org/forgejo/forgejo:9"
 DOCKER_NETWORK="d3v-net"
 
+FORGEJO_RUNNER_DIR="/opt/forgejo-runner"
+FORGEJO_RUNNER_CONTAINER="forgejo-runner"
+FORGEJO_RUNNER_IMAGE="code.forgejo.org/forgejo/runner:latest"
+
 RED='\033[0;31m'
 GREEN='\033[0;32m'
 YELLOW='\033[1;33m'
@@ -740,6 +744,92 @@ do_forgejo_update() {
     log_ok "Done."
 }
 
+do_forgejo_runner_install() {
+    require_root
+
+    if docker ps -a --format '{{.Names}}' | grep -q "^${FORGEJO_RUNNER_CONTAINER}$"; then
+        log_warn "Forgejo Runner is already installed."
+        return
+    fi
+
+    separator
+    echo -e "${BOLD} Forgejo Runner Installation${NC}"
+    separator
+    echo ""
+
+    read -rp "$(echo -e "${CYAN}[?]${NC} Forgejo URL [https://src.d3v.ac]: ")" forgejo_url
+    forgejo_url="${forgejo_url:-https://src.d3v.ac}"
+
+    echo ""
+    echo -e "  Get token from: ${BOLD}${forgejo_url}/-/admin/runners${NC}"
+    echo -e "  Or: repo ${BOLD}Settings → Actions → Runners → Create new Runner${NC}"
+    echo ""
+    read -rsp "$(echo -e "${CYAN}[?]${NC} Runner registration token: ")" runner_token
+    echo ""
+    if [ -z "$runner_token" ]; then
+        log_err "Token cannot be empty. Cancelled."
+        return
+    fi
+
+    mkdir -p "$FORGEJO_RUNNER_DIR"
+
+    log_step "Registering runner with Forgejo..."
+    docker run --rm \
+        -v "${FORGEJO_RUNNER_DIR}:/data" \
+        "${FORGEJO_RUNNER_IMAGE}" \
+        forgejo-runner register \
+        --no-interactive \
+        --url "${forgejo_url}" \
+        --token "${runner_token}" \
+        --name "$(hostname)-runner" \
+        --labels "ubuntu-latest:docker://node:20-bullseye,ubuntu-22.04:docker://node:20-bullseye"
+
+    if [ $? -ne 0 ]; then
+        log_err "Runner registration failed. Check the token and Forgejo URL."
+        return
+    fi
+    log_ok "Runner registered."
+
+    log_step "Starting Forgejo Runner..."
+    docker run -d \
+        --name "${FORGEJO_RUNNER_CONTAINER}" \
+        --restart unless-stopped \
+        -v /var/run/docker.sock:/var/run/docker.sock \
+        -v "${FORGEJO_RUNNER_DIR}:/data" \
+        "${FORGEJO_RUNNER_IMAGE}" \
+        forgejo-runner daemon
+
+    log_ok "Forgejo Runner started."
+    echo ""
+    separator
+    echo -e "${GREEN}${BOLD}   FORGEJO RUNNER INSTALLED!${NC}"
+    separator
+    echo -e "  Runner connected to: ${BOLD}${forgejo_url}${NC}"
+    echo -e "  Push a commit to trigger your first workflow."
+    separator
+}
+
+do_forgejo_runner_uninstall() {
+    require_root
+
+    if ! docker ps -a --format '{{.Names}}' | grep -q "^${FORGEJO_RUNNER_CONTAINER}$"; then
+        log_warn "Forgejo Runner is not installed."
+        return
+    fi
+
+    log_warn "This will stop and remove the Forgejo Runner."
+    read -rp "$(echo -e "${RED}Are you sure? (y/N): ${NC}")" confirm
+    if [[ ! "$confirm" =~ ^[yY]$ ]]; then
+        echo "Cancelled."
+        return
+    fi
+
+    docker stop "${FORGEJO_RUNNER_CONTAINER}" 2>/dev/null || true
+    docker rm "${FORGEJO_RUNNER_CONTAINER}" 2>/dev/null || true
+    rm -rf "$FORGEJO_RUNNER_DIR"
+    log_ok "Forgejo Runner uninstalled."
+}
+
 show_forgejo_menu() {
     while true; do
         echo ""
@@ -749,15 +839,19 @@ show_forgejo_menu() {
         echo "  1) Install Forgejo"
         echo "  2) Uninstall Forgejo"
         echo "  3) Update Forgejo"
-        echo "  4) Back"
+        echo "  4) Install Runner"
+        echo "  5) Uninstall Runner"
+        echo "  6) Back"
         separator
-        read -rp "  Select [1-4]: " choice
+        read -rp "  Select [1-6]: " choice
         echo ""
         case "$choice" in
             1) do_forgejo_install ;;
             2) do_forgejo_uninstall ;;
             3) do_forgejo_update ;;
-            4) return ;;
+            4) do_forgejo_runner_install ;;
+            5) do_forgejo_runner_uninstall ;;
+            6) return ;;
             *) log_err "Invalid option." ;;
         esac
     done