File upload (100MB default, 1-week retention), per-channel pinned canvas (single active, sharer-only update), and plugin file delivery to agents. TEST_POINTS §8 + P14 added. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bypass-list feature for discuss/work channels (order/bypass disjoint partition, mention nesting cap, mid-rotation move-to-bypass) + the stack-wide test-point reference. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
