Merge remote-tracking branch 'origin/master' into worktree-grok-mode

# Conflicts:
#	src/web/public/app.js

.changeset/calm-tabs-foundation.md

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+---
+"aicodeman": minor
+---
+
+Add the owner-scoped tab-layout model, persistence, API, lifecycle repair, and synchronized legacy ordering foundation.

.changeset/cod-358-upstream-vertical-rail.md

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+---
+'aicodeman': minor
+---
+
+Add an optional resizable vertical session rail with responsive layout, complete labels, accessible controls, and stable inline rename.