Update setup docs and scripts

Refresh setup docs, add ZXDB local setup script, and note deploy rules.

Signed-off-by: codex@lucy.xalior.com

bin/deploy.sh

@@ -8,6 +8,10 @@ if ! git diff --quiet || ! git diff --cached --quiet; then
   echo "Working tree is not clean. Commit or stash changes before deploy."
   exit 1
 fi
+if git ls-files --others --exclude-standard | grep -q .; then
+  echo "Untracked files present. Commit or remove them before deploy."
+  exit 1
+fi
 
 cleanup() {
   git checkout "${current_branch}" >/dev/null 2>&1 || true

bin/setup-zxdb-local.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+git_dir="$(git -C ZXDB rev-parse --git-dir)"
+exclude_file="${git_dir}/info/exclude"
+
+mkdir -p "$(dirname "${exclude_file}")"
+touch "${exclude_file}"
+
+add_exclude() {
+  local pattern="$1"
+  if ! grep -Fxq "${pattern}" "${exclude_file}"; then
+    printf "%s\n" "${pattern}" >> "${exclude_file}"
+  fi
+}
+
+add_exclude "ZXDB_mysql.sql"
+add_exclude "ZXDB_mysql_STRUCTURE_ONLY.sql"