* feat(app): add persistent workspace side panes
Keep the common review and file-browsing workflow beside the active agent without tearing down pane contents. Workspace tabs now share one compact chip language, assistant file links route into the retained right pane, and diff/file trees share stable geometry.
* fix(app): localize pull request empty state
* test(app): update explorer pane coverage
* fix(app): preserve explorer pane workflows
* test(app): make explorer tab selection idempotent
* fix(app): persist workspace review pins
* fix(app): preserve sidebar scrim drag hook
* fix(app): restore companion pane interactions
* test(app): follow selected sidebar surface
* fix: show resolved file paths in agent file-link tooltips
Bare filenames in agent messages now resolve to their full workspace
path on hover. Also raises the daemon's directory-suggestion scan
depth so files in deeper package layouts are reachable.
* fix(app): keep file-link wrapper stable to avoid layout shift on resolve
* fix(app): resolve file links on hover instead of at render time
useQuery was firing the daemon RPC for every ambiguous file reference
the moment a message rendered, fanning out a wave of requests on chat
scroll. Switch to enabled: false + prefetchQuery on hover so RPCs are
driven by user intent. Sync-resolvable refs (directFile, external)
still seed via initialData and render with no RPC.
Also memo on source primitives rather than identity so identical-
content sources constructed inline upstream don't bust the memo every
render.
* Redesign assistant file link resolution
* Stabilize assistant file link handlers
