fix(tui): enable copy-on-select in permission prompt

The permission prompt's expanded (ctrl+f) view renders via Portal,
which sits outside the root box's onMouseUp handler. Add an onMouseUp
copy-on-select handler directly on the prompt's content box so
clipboard copy works in both inline and fullscreen views.

Author: Integralist

packages/tui/src/routes/session/permission.tsx

@@ -17,6 +17,10 @@ import { useTuiConfig } from "../../config"
 import{OPENCODE_BASE_MODE,useBindings,useCommandShortcut}from"../../keymap"
 import{usePathFormatter}from"../../context/path-format"
 import{useDialog}from"../../ui/dialog"
+import{useClipboard}from"../../context/clipboard"
+import{useToast}from"../../ui/toast"
+import{Selection}from"../../util/selection"
+import{Flag}from"@opencode-ai/core/flag/flag"
 
 typePermissionStage="permission"|"always"|"reject"
 
@@ -601,6 +605,8 @@ function Prompt<const T extends Record<string, string>>(props: {
 })
 constnarrow=createMemo(()=>dimensions().width<80)
 constfullscreenHint=useCommandShortcut("permission.prompt.fullscreen")
+constclipboard=useClipboard()
+consttoast=useToast()
 
 useBindings(()=>({
 mode: OPENCODE_BASE_MODE,
@@ -687,14 +693,19 @@ function Prompt<const T extends Record<string, string>>(props: {
 }))
 
 consthint=createMemo(()=>(store.expanded ? "minimize" : "fullscreen"))
-useRenderer()
+constrenderer=useRenderer()
 
 constcontent=()=>(
 <box
 backgroundColor={theme.backgroundPanel}
 border={["left"]}
 borderColor={theme.warning}
 customBorderChars={SplitBorder.customBorderChars}
+onMouseUp={
+!Flag.OPENCODE_EXPERIMENTAL_DISABLE_COPY_ON_SELECT
+ ? ()=>Selection.copy(renderer,toast,clipboard)
+ : undefined
+}
 {...(store.expanded
  ? {top: dimensions().height*-1+1,bottom: 1,left: 2,right: 2,position: "absolute"}
  : {