v0.5.4

What's new

• Loading indicators and empty state — chat buffer shows loading spinner during fetch and "No messages" when empty
• Date separators and unread divider — date group headers between messages; "Unread messages" divider at the unread boundary
• Unread-aware loading — initial load fetches 30 messages (up from 10), centered around lastReadInboxMessageId

Fixed

• Cursor positioned at first unread message — jumps to first message below the unread divider, not date group boundary
• Unread divider stays fixed — stays at original position until all messages above are read; per-message read tracking
• Read receipt reliability — last_read_id persisted per-chat like saved_cursors, protected from stale server responses; read only marked when cursor reaches last line of a message
• Unread count accuracy — deduplicated load_newer counting; own/at-bottom messages no longer increment; math.min() guards against stale server counts
• Cursor maintenance — tracked by message ID during older loads, not buffer line number
• extra_before delta — corrected cumulative offset calc using (extra - prev_extra) in incremental loops
• Immediate title/status update — CursorMoved calls update_title() + redrawstatus right after marking read, no longer waiting for server round-trip

Changed

• Initial message load — 10 → 30 messages on first chat open
• getChat returns lastReadInboxMessageId — Lua side receives it for unread-aware positioning