Release v0.1.0

First signed XPI via web-ext unlisted channel. Firefox will now auto-update
installed copies by polling dist/updates.json in this repo.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

.gitignore

@@ -1,5 +1,6 @@
 node_modules/
 .web-ext-artifacts/
+.amo-upload-uuid
 *.log
 .DS_Store
 .env