chore: publish plugins to self-hosted Gitea

Add publish:gitea wrapper that sets USER_CONTENT_BASE to Gitea raw URLs,
and resolve the lockfile's npmmirror tarballs from registry.npmjs.org.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

scripts/publish-gitea.sh

@@ -0,0 +1,15 @@
+#!/bin/bash
+# Publish plugins to the self-hosted Gitea repo instead of GitHub.
+# The manifest must reference Gitea raw URLs, which the upstream script
+# derives from USER_CONTENT_BASE.
+set -e
+
+GITEA_BASE="${GITEA_BASE:-https://git.marcospaulo.dev.br}"
+version=$(node -e "console.log(require('./package.json').version);")
+repo_path=$(git remote get-url origin | sed -E 's#^.*[:/]([^/:]+/[^/]+?)(\.git)?$#\1#; s#\.git$##')
+
+export USER_CONTENT_BASE="$GITEA_BASE/$repo_path/raw/branch/plugins/v$version"
+echo "Manifest base: $USER_CONTENT_BASE"
+
+./scripts/publish-plugins.sh
+echo "Repository URL for LNReader: $USER_CONTENT_BASE/.dist/plugins.min.json"