PR #1828 added an await loadKanbanBoards() at the START of loadKanban() to
resolve the active board before board-scoped requests fire (so a stale saved
slug can fall back to default cleanly). The existing tail-of-function refresh
at line 1278 was harmless under one-time loads but doubles /api/kanban/boards
traffic under SSE-driven refreshes (debounced at 250ms via
_scheduleKanbanRefresh). The 30-second polling interval started by
_kanbanStartPolling() picks up any board state changes that arrive after
the render, so the tail call is redundant in PR #1828's new model.
Per Opus pre-release verdict: SHIP with this perf cleanup as in-release
absorb (5 LOC delta, clearly defensive, no behavior change for the
single-load case).
a1eec6d191
