fix: clean up 49 unused variables, catch params, and stale imports (#22695)

packages/app/src/pages/session.tsx

@@ -433,7 +433,6 @@ export default function Page() {
   const isChildSession = createMemo(() => !!info()?.parentID)
   const diffs = createMemo(() => (params.id ? list(sync.data.session_diff[params.id]) : []))
   const sessionCount = createMemo(() => Math.max(info()?.summary?.files ?? 0, diffs().length))
-  const hasSessionReview = createMemo(() => sessionCount() > 0)
   const canReview = createMemo(() => !!sync.project)
   const reviewTab = createMemo(() => isDesktop())
   const tabState = createSessionTabs({
@@ -443,8 +442,6 @@ export default function Page() {
     review: reviewTab,
     hasReview: canReview,
   })
-  const contextOpen = tabState.contextOpen
-  const openedTabs = tabState.openedTabs
   const activeTab = tabState.activeTab
   const activeFileTab = tabState.activeFileTab
   const revertMessageID = createMemo(() => info()?.revert?.messageID)

packages/app/src/pages/session/file-tabs.tsx

@@ -378,12 +378,6 @@ export function FileTabContent(props: { tab: string }) {
     requestAnimationFrame(() => comments.clearFocus())
   })
 
-  const cancelCommenting = () => {
-    const p = path()
-    if (p) file.setSelectedLines(p, null)
-    setNote("commenting", null)
-  }
-
   let prev = {
     loaded: false,
     ready: false,