## Summary
Changes the highlight "Chat" button behavior:
- **Before**: Clicking "Chat" immediately opened the chat view with "Tell me more about XYZ" sent as the user's first message
- **After**: Clicking "Chat" reveals an inline reply input right under the highlight card. The user types their response, and when they submit:
- The highlight content appears as the **assistant's first message** (prefixed with "Here is a highlight from your memories:")
- The user's reply appears as the second message
- A fresh chat thread is created (no overwriting existing conversations)
### Files Changed
- **`apps/web/components/highlights-card.tsx`** - Added inline reply input UI with send/cancel buttons, keyboard handling (Enter/Escape), auto-focus, and state reset on item navigation or items refresh
- **`apps/web/components/chat/index.tsx`** - Added `queuedHighlightContent` prop, fresh thread creation for highlight chats, deferred `setMessages` to ensure correct Chat instance targeting, and `awaitingHighlightInjectionRef` for safe reply dispatch
- **`apps/web/app/(app)/page.tsx`** - Added `queuedHighlightContent` state, updated `handleHighlightsChat` to accept highlight content + user reply, cleared stale highlight content in `handleHomeChatStart`
- **`apps/web/components/dashboard-view.tsx`** - Updated `onHighlightsChat` type signature
- **`apps/web/components/memories-grid.tsx`** - Updated `HighlightsProps.onChat` type signature
## Testing
### TypeScript
- `npx tsc --noEmit` — no new type errors (all errors are pre-existing in unrelated files)
### Biome
- `bunx biome check --write` — clean on all changed files (pre-existing warnings only in dashboard-view.tsx)
### Automated Tests (via testing subagent)
- **25 passed / 0 failed / 1 skipped** (26 total)
- Tests covered: inline reply input visibility, keyboard handling (Enter/Escape), reply state reset on navigation, highlight content injection as assistant message, user reply dispatch, fresh thread creation, stale highlight content prevention, pagination dot handler
- The testing agent discovered and fixed a race condition where `setMessages` was called before `useChat` had recreated its internal Chat object after `setFallbackChatId` — the fix defers `setMessages` to a separate effect gated on `currentChatId` matching the target
- 1 test skipped (T12): Nova FAB button not separately visible from highlights card button at 1440px viewport — expected structural behavior
---
**Session Details**
- Session: [View Session](https://supermemory.us1.vorflux.com/agent-sessions/9cbf2106-b7b9-4d7c-b275-2a7e72417793)
- Requested by: Soham Daga (soham@supermemory.com)
- Address comments on this PR. Add `(aside)` to your comment to have me ignore it.
Adds multi-select and multi-file drag-and-drop on the Add Document Upload files tab, a per-file queue with status, retry for failed rows, and batched uploads to the existing `POST /v3/documents/file` endpoint with a client-side concurrency limit of 3.
Optional title/description apply only when a single file is queued. .md / .mdx (and text/markdown) are accepted.
Upload progress is shown as a bottom strip with a slow width animation
