sync: multiple features from private repo

- quick-add-loading: fire-and-forget with loading placeholders, auto-open feed, SSE events, QuickAddInput redesign
- database-table-pane: TablePane + DatabaseTableView, countNodes(), event_date sort
- ui-polish-fixes: focus tab order, dim name editing, tab title sync, cost chip removal, custom sort drag-reorder, refresh button, dimension filter removal (~2,200 lines)
- node-creation-quality: description service prompt rewrite, title sanitization, extraction tool AI prompt rewrites
- feed-pane-ux: stripped kanban/grid/saved views, sort dropdown, AND dimension filtering, description preview

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/types/database.ts

@@ -69,7 +69,7 @@ export interface NodeFilters {
   search?: string;           // Text search in title/content
   limit?: number;
   offset?: number;
-  sortBy?: 'updated' | 'edges' | 'created';  // Sort by updated_at, edge count, or created_at
+  sortBy?: 'updated' | 'edges' | 'created' | 'event_date';  // Sort by updated_at, edge count, created_at, or event_date
   dimensionsMatch?: 'any' | 'all';  // 'any' = OR (default), 'all' = AND
   createdAfter?: string;     // ISO date (YYYY-MM-DD) — nodes created on or after
   createdBefore?: string;    // ISO date (YYYY-MM-DD) — nodes created before