fix(desktop): stop injecting ctrl-l into terminal startup

Remove the prompt-gap cleanup that sent Ctrl-L into the user's shell; it could
render as literal ^L and create the exact top-line gap it was meant to hide.
Keep first-prompt cleanup renderer-side only, and parse short ESC charset
sequences so the initial newline stripper does not disarm early.

Also add a Close all action to the terminal tab context menu.

apps/desktop/src/app/right-sidebar/terminal/rail.tsx

@@ -19,6 +19,7 @@ import { setTerminalTakeover } from '../store'
 import {
   $activeTerminalId,
   $terminals,
+  closeAllTerminals,
   closeOtherTerminals,
   closeTerminal,
   createTerminal,
@@ -167,6 +168,7 @@ function TerminalRailItem({ active, canCloseOthers, index, term, toggleHint }: T
         <ContextMenuItem disabled={!canCloseOthers} onSelect={() => closeOtherTerminals(term.id)}>
           {t.rightSidebar.terminalCloseOthers}
         </ContextMenuItem>
+        <ContextMenuItem onSelect={closeAllTerminals}>{t.rightSidebar.terminalCloseAll}</ContextMenuItem>
         <ContextMenuSeparator />
         <ContextMenuItem onSelect={() => setTerminalTakeover(false)}>{t.rightSidebar.terminalHide}</ContextMenuItem>
       </ContextMenuContent>

apps/desktop/src/app/right-sidebar/terminal/terminals.ts

@@ -110,7 +110,10 @@ export function cycleTerminal(direction: 1 | -1): void {
     return
   }
 
-  const current = Math.max(0, list.findIndex(term => term.id === $activeTerminalId.get()))
+  const current = Math.max(
+    0,
+    list.findIndex(term => term.id === $activeTerminalId.get())
+  )
 
   $activeTerminalId.set(list[(current + direction + list.length) % list.length].id)
 }
@@ -162,6 +165,16 @@ export function closeActiveTerminal(): void {
   }
 }
 
+export function closeAllTerminals(): void {
+  if ($terminals.get().length === 0) {
+    return
+  }
+
+  $terminals.set([])
+  $activeTerminalId.set(null)
+  setTerminalTakeover(false)
+}
+
 export function closeOtherTerminals(id: string): void {
   const keep = $terminals.get().find(term => term.id === id)
 
@@ -174,7 +187,9 @@ export function closeOtherTerminals(id: string): void {
 export function renameTerminal(id: string, title: string): void {
   const trimmed = title.trim()
 
-  $terminals.set($terminals.get().map(term => (term.id === id ? { ...term, title: trimmed || term.title, auto: false } : term)))
+  $terminals.set(
+    $terminals.get().map(term => (term.id === id ? { ...term, title: trimmed || term.title, auto: false } : term))
+  )
 }
 
 /** A live terminal reports its resolved shell; adopt it as the label only while

apps/desktop/src/app/right-sidebar/terminal/use-terminal-session.ts

@@ -66,6 +66,14 @@ function readEscapeSequence(data: string, index: number) {
     }
   }
 
+  // Character-set and other short ESC forms are three bytes (e.g. ESC ( B).
+  // Treating only ESC+( as a sequence leaves the final selector ("B") as
+  // printable text, which disarms the initial prompt-gap stripper before it can
+  // eat the shell's leading newline.
+  if (['(', ')', '*', '+', '-', '.', '/'].includes(kind) && index + 2 < data.length) {
+    return data.slice(index, index + 3)
+  }
+
   return data.slice(index, Math.min(index + 2, data.length))
 }
 
@@ -419,18 +427,9 @@ export function useTerminalSession({ id, cwd, active, onAddSelectionToChat, onSh
       host.removeEventListener('drop', onDrop)
     })
 
-    // A fresh prompt should sit at the top. Every resize SIGWINCHes the shell,
-    // which reprints its prompt and can leave stale blank rows above it. While
-    // the session is pristine (nothing run yet) we ask the shell to clear +
-    // redraw via Ctrl-L (\f) after the resize settles. Ctrl-L preserves
-    // multi-line prompts (term.clear() would drop all but the cursor row) and we
-    // stop the moment real output exists, so command scrollback is never wiped.
-    let promptPristine = true
-    let gapCleanupTimer = 0
-
-    // While armed, strip leading blank rows so the prompt lands at the very top
-    // (no starship `add_newline` gap). Re-armed before each Ctrl-L redraw so the
-    // resize cleanup doesn't reintroduce the blank line.
+    // While armed, strip leading blank rows so the first prompt lands at the
+    // very top (no starship `add_newline` gap). Do this only on renderer output:
+    // never inject Ctrl-L or other cleanup keystrokes into the user's shell.
     let stripLeading = true
 
     const armedWrite = (data: string) => {
@@ -459,35 +458,6 @@ export function useTerminalSession({ id, cwd, active, onAddSelectionToChat, onSh
       term.write(next)
     }
 
-    const scheduleGapCleanup = () => {
-      if (!promptPristine) {
-        return
-      }
-
-      if (gapCleanupTimer) {
-        window.clearTimeout(gapCleanupTimer)
-      }
-
-      gapCleanupTimer = window.setTimeout(() => {
-        gapCleanupTimer = 0
-        const id = sessionIdRef.current
-
-        if (disposed || !id || !promptPristine) {
-          return
-        }
-
-        stripLeading = true
-        void terminalApi.write(id, '\f')
-        term.clearSelection()
-      }, 120)
-    }
-
-    cleanup.push(() => {
-      if (gapCleanupTimer) {
-        window.clearTimeout(gapCleanupTimer)
-      }
-    })
-
     const fitAndResize = () => {
       if (disposed || !host.isConnected || host.clientWidth <= 0 || host.clientHeight <= 0) {
         return
@@ -504,7 +474,6 @@ export function useTerminalSession({ id, cwd, active, onAddSelectionToChat, onSh
       if (id && (lastSentSize?.cols !== term.cols || lastSentSize?.rows !== term.rows)) {
         lastSentSize = { cols: term.cols, rows: term.rows }
         void terminalApi.resize(id, { cols: term.cols, rows: term.rows })
-        scheduleGapCleanup()
       }
     }
 
@@ -543,12 +512,6 @@ export function useTerminalSession({ id, cwd, active, onAddSelectionToChat, onSh
       const id = sessionIdRef.current
 
       if (id) {
-        // Once the user submits a line, real output may follow — stop the
-        // pristine-prompt gap cleanup so we never clear command scrollback.
-        if (promptPristine && data.includes('\r')) {
-          promptPristine = false
-        }
-
         void terminalApi.write(id, data)
       }
     })

apps/desktop/src/i18n/en.ts

@@ -1887,6 +1887,7 @@ export const en: Translations = {
     terminalsAria: 'Terminals',
     terminalNew: 'New terminal',
     terminalCloseOthers: 'Close others',
+    terminalCloseAll: 'Close all',
     addToChat: 'Add to chat'
   },
 

apps/desktop/src/i18n/ja.ts

@@ -2004,6 +2004,10 @@ export const ja = defineLocale({
     loadingTree: 'ファイルツリーを読み込み中',
     loadingFiles: 'ファイルを読み込み中',
     terminalHide: 'ターミナルを非表示',
+    terminalsAria: 'ターミナル',
+    terminalNew: '新しいターミナル',
+    terminalCloseOthers: '他を閉じる',
+    terminalCloseAll: 'すべて閉じる',
     addToChat: 'チャットに追加'
   },
 

apps/desktop/src/i18n/types.ts

@@ -1540,6 +1540,7 @@ export interface Translations {
     terminalsAria: string
     terminalNew: string
     terminalCloseOthers: string
+    terminalCloseAll: string
     addToChat: string
   }
 

apps/desktop/src/i18n/zh-hant.ts

@@ -1942,6 +1942,10 @@ export const zhHant = defineLocale({
     loadingTree: '正在載入檔案樹',
     loadingFiles: '正在載入檔案',
     terminalHide: '隱藏終端機',
+    terminalsAria: '終端機',
+    terminalNew: '新增終端機',
+    terminalCloseOthers: '關閉其他',
+    terminalCloseAll: '全部關閉',
     addToChat: '新增至聊天'
   },
 

apps/desktop/src/i18n/zh.ts

@@ -2057,6 +2057,7 @@ export const zh: Translations = {
     terminalsAria: '终端',
     terminalNew: '新建终端',
     terminalCloseOthers: '关闭其他',
+    terminalCloseAll: '关闭全部',
     addToChat: '添加到对话'
   },