test: update generated Bash prompt readiness contract

src/main/__fixtures__/shell-wrapper-snapshots/daemon-bash-rcfile.txt

@@ -127,10 +127,6 @@ __orca_osc133_precmd() {
     unset __orca_in_command
   fi
   printf "\033]133;A\007"
-  # Why: emit the shell-ready marker here (not a trailing PROMPT_COMMAND entry)
-  # so a framework that must be last in PROMPT_COMMAND — bash-preexec — is not
-  # displaced by one of Orca's own hooks.
-  [[ -n "$__orca_ready_marker" ]] && printf "\033]777;orca-shell-ready\007"
   return "$exit_code"
 }
 __orca_osc133_preexec() {
@@ -188,6 +184,11 @@ __orca_osc133_epilogue() {
   unset __orca_in_prompt_command
   __orca_adopt_outer_debug_trap
   trap '__orca_osc133_preexec' DEBUG
+  # Readline renders PS1 after entering raw mode; prompt hooks still run in cooked mode.
+  if [[ -n "$__orca_ready_marker" ]]; then
+    PS1="${PS1-}"'\[\e]777;orca-shell-ready\a\]'
+    __orca_ready_marker=""
+  fi
 }
 __orca_normalize_prompt_command_part() {
   local __orca_value="$1" __orca_output_name="$2" __orca_character __orca_chunk

src/main/shell-wrapper-generated-file-snapshot.test.ts

@@ -73,6 +73,7 @@ const CONTRACT_GLOBALS = new Set([
   'OPENCODE_CONFIG_DIR',
   'PATH',
   'PROMPT_COMMAND',
+  'PS1', // Bash appends its non-printing Readline readiness marker.
   'CURSOR',
   'ZDOTDIR',
   'precmd_functions',