Three visual improvements for the briefing conversation:
1. Intermediate tool-call messages (empty content, briefing_intermediate:
true) now render as a compact dashed status row with per-tool pills
showing result counts, instead of an empty assistant bubble followed
by a stack of ToolCallCards. Click to expand the full cards.
2. Slot badge on non-intermediate briefing messages — "Full Briefing"
for compilation, "Morning/Midday/Afternoon Update" for slot
injections. Slot updates get a softer bubble treatment (transparent
background, muted border, smaller text) so the compilation stays
visually dominant.
3. Slot separator now triggers on briefing_slot metadata (not the
compilation-only rss_item_ids), and uses a look-behind so it only
fires when there's a prior slot message — no separator above the
first briefing of the day.
New component: BriefingToolStatusRow.vue handles the intermediate
pill row and delegates to ToolCallCard when expanded.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
