Fix script breaking when run via bash <(curl ...) pipe

Replace `exec < /dev/tty` (which hijacks bash's script-reading fd and
causes the rest of the script to be interpreted as shell commands) with
per-call `< /dev/tty` redirection on every `read` and prompt `printf`.

This preserves bash's ability to continue reading the script from the
process substitution while still getting interactive input from the
real terminal.

https://claude.ai/code/session_01XKYC1basxdwtHy71tky7xm

setup-openwhispr.sh

@@ -11,13 +11,6 @@ readonly MARKER="# Added by openwhispr-easy-setup"
 readonly GITHUB_API="https://api.github.com/repos/OpenWhispr/openwhispr/releases/latest"
 readonly TMP_DIR="/tmp/openwhispr-install"
 
-# ── Ensure interactive input works when piped (bash <(curl ...)) ──────────────
-# When run via bash <(curl ...), stdin is the curl stream, not the terminal.
-# We must read user input from /dev/tty instead.
-if [[ ! -t 0 ]] && [[ -e /dev/tty ]]; then
-    exec < /dev/tty
-fi
-
 # ── Colours & formatting ─────────────────────────────────────────────────────
 
 if [[ -t 1 ]]; then
@@ -48,8 +41,8 @@ divider() { printf "${DIM}━━━━━━━━━━━━━━━━━━
 prompt_default() {
     # Usage: prompt_default "prompt text" "default" VARNAME
     local prompt="$1" default="$2" varname="$3" reply
-    printf "%s [default: %s]: " "$prompt" "$default"
+    printf "%s [default: %s]: " "$prompt" "$default" > /dev/tty
-    read -r reply
+    read -r reply < /dev/tty
     reply="${reply:-$default}"
     printf -v "$varname" '%s' "$reply"
 }
@@ -57,9 +50,9 @@ prompt_default() {
 prompt_hidden() {
     # Usage: prompt_hidden "prompt text" VARNAME
     local prompt="$1" varname="$2" reply
-    printf "%s: " "$prompt"
+    printf "%s: " "$prompt" > /dev/tty
-    read -rs reply
+    read -rs reply < /dev/tty
-    printf "\n"
+    printf "\n" > /dev/tty
     printf -v "$varname" '%s' "$reply"
 }
 
@@ -123,8 +116,8 @@ This script will:
   6. Launch OpenWhispr for first-run setup
 INTRO
 divider
-printf "\nPress Enter to continue or Ctrl-C to cancel... "
+printf "\nPress Enter to continue or Ctrl-C to cancel... " > /dev/tty
-read -r
+read -r < /dev/tty
 
 # ══════════════════════════════════════════════════════════════════════════════
 # [2/8] Detect distro + arch
@@ -183,8 +176,8 @@ fi
 
 if ! command_exists jq; then
     warn "jq is required but not installed."
-    printf "Install jq now? [Y/n]: "
+    printf "Install jq now? [Y/n]: " > /dev/tty
-    read -r jq_reply
+    read -r jq_reply < /dev/tty
     jq_reply="${jq_reply:-Y}"
     if [[ "${jq_reply,,}" == "y" ]]; then
         case "$DISTRO_FAMILY" in
@@ -526,8 +519,8 @@ case "$CLEANUP_CHOICE" in
     ollama pull llama3.1
 
 OLLAMA_INFO
-            printf "Install Ollama now? [Y/n]: "
+            printf "Install Ollama now? [Y/n]: " > /dev/tty
-            read -r ollama_reply
+            read -r ollama_reply < /dev/tty
             ollama_reply="${ollama_reply:-Y}"
             if [[ "${ollama_reply,,}" == "y" ]]; then
                 curl -fsSL https://ollama.ai/install.sh | sh || {