Replies to replies don't carry the root post ID in their e tags, only their
immediate parent's ID. The old single-level #e filter missed nested replies.
Added fetchRepliesRecursive() which does breadth-first recursive fetching:
- Starts with root post ID, fetches direct replies
- For each reply found, fetches replies to THAT reply
- Continues up to 5 levels deep (REPLY_FETCH_MAX_DEPTH)
- Deduplicates by event ID
- Per-level timeout (8s) to guard against slow relays
- Real-time handler also triggers 1-level recursive fetch for new replies
This matches Amethyst's ThreadFilterAssemblerSubscription approach.
Laan Tungir
6b45092bc8