Add GitHub publish script

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

tools/publish.sh

@@ -0,0 +1,49 @@
+#!/usr/bin/env bash
+# One-shot publish to GitHub. Run AFTER authenticating gh (see below).
+#
+# Auth options (pick one):
+#   export GH_TOKEN=ghp_xxx          # a token with 'repo' + 'workflow' scope
+#   gh auth login                    # interactive
+#
+# Usage:
+#   ./tools/publish.sh [REPO_NAME] [--private]
+#   (defaults: repo name "GB4-UltraWide-Fix", public)
+set -euo pipefail
+HERE="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"; cd "$HERE"
+
+REPO="${1:-GB4-UltraWide-Fix}"
+VIS="--public"; [ "${2:-}" = "--private" ] && VIS="--private"
+TAG="v1.0.0"
+
+command -v gh >/dev/null || { echo "[!] gh not installed"; exit 1; }
+gh auth status >/dev/null 2>&1 || { echo "[!] Not authenticated. Set GH_TOKEN or run 'gh auth login'."; exit 1; }
+OWNER="$(gh api user -q .login)"
+echo "[+] Publishing as: $OWNER   repo: $REPO   $VIS"
+
+# 1. build the release artifact fresh
+bash tools/build_release.sh >/dev/null
+echo "[+] Built dist/GB4_UltraWide_Fix.zip"
+
+# 2. create the repo (skip if it already exists) and set as origin
+if gh repo view "$OWNER/$REPO" >/dev/null 2>&1; then
+  echo "[i] Repo exists; reusing."
+  git remote get-url origin >/dev/null 2>&1 || git remote add origin "https://github.com/$OWNER/$REPO.git"
+else
+  gh repo create "$OWNER/$REPO" $VIS --source=. --remote=origin \
+    --description="UltraWide (32:9/21:9) fix for Gundam Breaker 4 — Hor+ FOV via SUWSF. Proton-ready."
+fi
+
+# 3. push branch + tag
+git push -u origin main
+git push origin "$TAG"
+
+# 4. create the release with notes + zip asset (idempotent)
+if gh release view "$TAG" -R "$OWNER/$REPO" >/dev/null 2>&1; then
+  gh release upload "$TAG" dist/GB4_UltraWide_Fix.zip -R "$OWNER/$REPO" --clobber
+else
+  gh release create "$TAG" dist/GB4_UltraWide_Fix.zip \
+    -R "$OWNER/$REPO" -t "GB4 UltraWide Fix $TAG" -F RELEASE_NOTES.md
+fi
+
+echo
+echo "[+] Done: https://github.com/$OWNER/$REPO/releases/tag/$TAG"