A hydrated Fedify object has no .tag property — tags are exposed through the
async getTags() iterator. The mention-notification check (if object.tag) and
the followed-hashtag check were therefore dead code: every inbound mention
failed to create a notification, and followed-tag posts never landed in the
timeline. Proven by replaying a real captured Bridgy Create payload: object.tag
=== undefined while getTags() yields the Mention. Switched both sites to
for await (... object.getTags()) with constructor.name type checks.
svemagie
32ea375378
