feat: add setup scripts (configure_env, macbook, unraid, fedora)

- configure_env.sh: interactive 50-prompt wizard with progress [N/50],
  input validation (IP, port, email, path, URL, bool, password, ssl_mode),
  conditional SSL prompts based on SSL_MODE, summary with masked passwords
- macbook.sh: Homebrew packages, envsubst, Xcode CLI tools, SSH tests
- unraid.sh: Docker verify, docker-compose + jq static binary install
- fedora.sh: Docker CE + compose plugin install, jq, docker group setup

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

setup/unraid.sh

@@ -0,0 +1,88 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# =============================================================================
+# setup/unraid.sh — Install prerequisites on Unraid (runs via SSH from MacBook)
+# =============================================================================
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+source "${SCRIPT_DIR}/../lib/common.sh"
+
+load_env
+require_vars UNRAID_IP UNRAID_SSH_USER UNRAID_GITEA_DATA_PATH
+
+log_info "=== Unraid Setup ==="
+
+# --------------------------------------------------------------------------
+# SSH connectivity
+# --------------------------------------------------------------------------
+log_info "Testing SSH to Unraid..."
+if ! ssh_check UNRAID; then
+  log_error "Cannot SSH to Unraid at $UNRAID_IP as $UNRAID_SSH_USER"
+  exit 1
+fi
+log_success "SSH to Unraid OK"
+
+# --------------------------------------------------------------------------
+# Docker (pre-installed on Unraid — DO NOT attempt to install)
+# --------------------------------------------------------------------------
+if ssh_exec UNRAID "docker --version" &>/dev/null; then
+  log_success "Docker found on Unraid"
+else
+  log_error "Docker not found on Unraid."
+  log_error "Enable Docker via Unraid's Settings > Docker page."
+  log_error "This script does not install Docker on Unraid."
+  exit 1
+fi
+
+# --------------------------------------------------------------------------
+# docker-compose (try plugin first, then standalone)
+# --------------------------------------------------------------------------
+if ssh_exec UNRAID "docker compose version" &>/dev/null; then
+  log_success "docker compose (plugin) found on Unraid"
+elif ssh_exec UNRAID "docker-compose --version" &>/dev/null; then
+  log_success "docker-compose (standalone) found on Unraid"
+else
+  log_info "Installing docker-compose standalone binary on Unraid..."
+  COMPOSE_VERSION="v2.29.1"
+  ssh_exec UNRAID "curl -SL https://github.com/docker/compose/releases/download/${COMPOSE_VERSION}/docker-compose-linux-x86_64 -o /usr/local/bin/docker-compose && chmod +x /usr/local/bin/docker-compose"
+  if ssh_exec UNRAID "docker-compose --version" &>/dev/null; then
+    log_success "docker-compose installed on Unraid"
+  else
+    log_error "Failed to install docker-compose on Unraid"
+    exit 1
+  fi
+fi
+
+# --------------------------------------------------------------------------
+# jq (install via static binary — Unraid has no package manager)
+# --------------------------------------------------------------------------
+if ssh_exec UNRAID "jq --version" &>/dev/null; then
+  log_success "jq found on Unraid"
+else
+  log_info "Installing jq static binary on Unraid..."
+  JQ_VERSION="1.7.1"
+  ssh_exec UNRAID "curl -SL https://github.com/jqlang/jq/releases/download/jq-${JQ_VERSION}/jq-linux-amd64 -o /usr/local/bin/jq && chmod +x /usr/local/bin/jq"
+  if ssh_exec UNRAID "jq --version" &>/dev/null; then
+    log_success "jq installed on Unraid"
+  else
+    log_error "Failed to install jq on Unraid"
+    exit 1
+  fi
+fi
+
+# --------------------------------------------------------------------------
+# Data path
+# --------------------------------------------------------------------------
+log_info "Verifying data path: $UNRAID_GITEA_DATA_PATH"
+if ssh_exec UNRAID "mkdir -p '$UNRAID_GITEA_DATA_PATH' && touch '$UNRAID_GITEA_DATA_PATH/.write-test' && rm '$UNRAID_GITEA_DATA_PATH/.write-test'"; then
+  log_success "Data path exists and is writable"
+else
+  log_error "Cannot write to $UNRAID_GITEA_DATA_PATH on Unraid"
+  exit 1
+fi
+
+# --------------------------------------------------------------------------
+# Summary
+# --------------------------------------------------------------------------
+log_success "All Unraid prerequisites satisfied"