Add labels as first-class nodes in the graph so tags act as visual clustering hubs, and let unlinked notes float in the space by default — per operator request (the graph is a light auxiliary lens, not a focal surface). Backend (graph.py): - Emit a label-hub node (id "label:<uuid>", kind "label", #name, label color) for every label attached to a live note. - Emit note -> label membership edges (kind "label") alongside the existing wiki-link edges (now kind "link"). Frontend (GraphView.vue): - Render hubs as larger ringed nodes; membership edges dashed with a slightly longer spring rest so notes ring their hub. - Default showAll (unlinked notes float) to true; add a Show labels toggle (default on) that hides hubs + membership edges. - Click a label hub -> that label's board lens (/label/<id>); note clicks still open the editor. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01FRgehjoz7Yv8LkUfADxACm