Workbench Layout Hardening

This note captures a UI hardening pass focused on cramped viewport behavior in core workbenches.

Scope

• /memories: added collapsible results sidebar behavior and resilient two-pane collapse behavior.
• /proposals: added collapsible proposal-list sidebar behavior and resilient detail-first mode.
• /tags: improved responsive fit for policy and insights panes to prevent overflow at narrower widths.
• /tags suggestions tab: added usage count visibility for each suggestion row.

Why This Change Exists

At narrower workspace widths, fixed pane assumptions caused cramped layouts and reduced navigability. This pass prioritizes readability, explicit show/hide controls for sidebars, and better table/editor fit.

Observable Outcomes

• Users can collapse and re-open list sidebars in Memories and Proposals using explicit controls.
• Tags policy editor and insights area now reflow more predictably on smaller widths.
• Tag suggestion triage now includes usage count context to support better allow/block decisions.

Follow-up Guidance

• Keep new sidebar toggles on non-trivial panes where list/detail density is high.
• Prefer flexible minmax(0, 1fr) detail columns over fixed wide minimums for admin workbenches.
• Include frequency/usage context in governance suggestion surfaces when available.