Add bash build script

build-xpi.sh

@@ -0,0 +1,77 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+release_dir="$script_dir/release"
+manifest="$script_dir/manifest.json"
+
+if [[ ! -f "$manifest" ]]; then
+  echo "manifest.json not found at $manifest" >&2
+  exit 1
+fi
+
+if ! command -v zip >/dev/null 2>&1; then
+  echo "zip is required to build the XPI." >&2
+  exit 1
+fi
+
+if command -v jq >/dev/null 2>&1; then
+  version="$(jq -r '.version // empty' "$manifest")"
+else
+  if ! command -v python3 >/dev/null 2>&1; then
+    echo "python3 is required to read manifest.json without jq." >&2
+    exit 1
+  fi
+  version="$(python3 - <<'PY'
+import json
+import sys
+with open(sys.argv[1], 'r', encoding='utf-8') as f:
+    data = json.load(f)
+print(data.get('version', '') or '')
+PY
+"$manifest")"
+fi
+
+if [[ -z "$version" ]]; then
+  echo "No version found in manifest.json" >&2
+  exit 1
+fi
+
+mkdir -p "$release_dir"
+
+xpi_name="sortana-$version.xpi"
+zip_path="$release_dir/ai-filter-$version.zip"
+xpi_path="$release_dir/$xpi_name"
+
+rm -f "$zip_path" "$xpi_path"
+
+mapfile -d '' files < <(
+  find "$script_dir" -type f \
+    ! -name '*.sln' \
+    ! -name '*.ps1' \
+    ! -name '*.sh' \
+    ! -path "$release_dir/*" \
+    ! -path "$script_dir/.vs/*" \
+    ! -path "$script_dir/.git/*" \
+    -printf '%P\0'
+)
+
+if [[ ${#files[@]} -eq 0 ]]; then
+  echo "No files found to package." >&2
+  exit 0
+fi
+
+for rel in "${files[@]}"; do
+  full="$script_dir/$rel"
+  size=$(stat -c '%s' "$full")
+  echo "Zipping: $rel <- $full ($size bytes)"
+done
+
+(
+  cd "$script_dir"
+  printf '%s\n' "${files[@]}" | zip -q -9 -@ "$zip_path"
+)
+
+mv -f "$zip_path" "$xpi_path"
+
+echo "Built XPI at: $xpi_path"