revert: remove unrelated changes from TabsView redesign PR

Remove ToolStrip simplification (in #251), test rewrites (in #249),
precheck worktree fix (in #252), and .opencode config. This PR now
contains only the TabsView device-centric card grid redesign.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: mattleaverton

.opencode/opencode.json

@@ -9,15 +9,13 @@
  * 3. Port conflicts - detects if freshell is already running
  */
 
-import { readFileSync } from 'fs'
+import { readFileSync, existsSync } from 'fs'
 import { resolve, dirname } from 'path'
 import { fileURLToPath } from 'url'
-import { createRequire } from 'module'
 import { runUpdateCheck, shouldSkipUpdateCheck } from '../server/updater/index.js'
 
 const __dirname = dirname(fileURLToPath(import.meta.url))
 const rootDir = resolve(__dirname, '..')
-const workspaceRequire = createRequire(resolve(rootDir, 'package.json'))
 
 // Load package.json for version
 function getPackageVersion(): string {
@@ -34,29 +32,6 @@ function getPackageVersion(): string {
  * Check if node_modules is missing required dependencies from package.json.
  * Returns list of missing packages.
  */
-function hasInstalledDependency(dep: string): boolean {
-  try {
-    // Use Node's resolver so worktrees can inherit dependencies from the
-    // parent checkout's node_modules instead of requiring a duplicate install.
-    workspaceRequire.resolve(`${dep}/package.json`)
-    return true
-  } catch (error) {
-    const code = typeof error === 'object' && error && 'code' in error
-      ? String((error as { code?: unknown }).code)
-      : ''
-    if (code !== 'ERR_PACKAGE_PATH_NOT_EXPORTED') {
-      return false
-    }
-  }
-
-  try {
-    workspaceRequire.resolve(dep)
-    return true
-  } catch {
-    return false
-  }
-}
-
 function checkMissingDependencies(): string[] {
   const missing: string[] = []
   try {
@@ -68,7 +43,8 @@ function checkMissingDependencies(): string[] {
     }
 
     for (const dep of Object.keys(allDeps)) {
-      if (!hasInstalledDependency(dep)) {
+      const depPath = resolve(rootDir, 'node_modules', dep)
+      if (!existsSync(depPath)) {
         missing.push(dep)
       }
     }

docs/plans/fix-tool-strip-showtools-toggle.md

@@ -451,7 +451,28 @@ export default function AgentChatView({ tabId, paneId, paneContent, hidden }: Ag
   const timelineItems = useMemo(() => session?.timelineItems ?? [], [session?.timelineItems])
   const timelineBodies = session?.timelineBodies ?? {}
 
+  // Auto-expand: count completed tools across all messages, expand the most recent N
+  const RECENT_TOOLS_EXPANDED = 3
   const messages = useMemo(() => session?.messages ?? [], [session?.messages])
+  const { completedToolOffsets, autoExpandAbove } = useMemo(() => {
+    let totalCompletedTools = 0
+    const offsets: number[] = []
+    for (const msg of messages) {
+      offsets.push(totalCompletedTools)
+      for (const b of msg.content) {
+        if (b.type === 'tool_use' && b.id) {
+          const hasResult = msg.content.some(
+            r => r.type === 'tool_result' && r.tool_use_id === b.id
+          )
+          if (hasResult) totalCompletedTools++
+        }
+      }
+    }
+    return {
+      completedToolOffsets: offsets,
+      autoExpandAbove: Math.max(0, totalCompletedTools - RECENT_TOOLS_EXPANDED),
+    }
+  }, [messages])
 
   // Debounce streaming text to limit markdown re-parsing to ~20x/sec
   const debouncedStreamingText = useStreamDebounce(
@@ -640,6 +661,8 @@ export default function AgentChatView({ tabId, paneId, paneContent, hidden }: Ag
                     showThinking={paneContent.showThinking ?? defaultShowThinking}
                     showTools={paneContent.showTools ?? defaultShowTools}
                     showTimecodes={paneContent.showTimecodes ?? defaultShowTimecodes}
+                    completedToolOffset={completedToolOffsets[item.msgIndices[1]]}
+                    autoExpandAbove={autoExpandAbove}
                   />
                 </React.Fragment>
               )
@@ -656,6 +679,8 @@ export default function AgentChatView({ tabId, paneId, paneContent, hidden }: Ag
                 showThinking={paneContent.showThinking ?? defaultShowThinking}
                 showTools={paneContent.showTools ?? defaultShowTools}
                 showTimecodes={paneContent.showTimecodes ?? defaultShowTimecodes}
+                completedToolOffset={completedToolOffsets[item.msgIndex]}
+                autoExpandAbove={autoExpandAbove}
               />
             )
           })