feat: refine live outage dashboard layout

main.sh

@@ -753,12 +753,12 @@ schedule_next_transition() {
 
 render_dashboard() {
   local now_epoch="$1"
-  local columns width rule phase start_epoch stop_epoch record remaining banner
+  local columns content_width rule phase start_epoch stop_epoch record remaining banner
   local schedule_line ignored
 
   color_setup
   columns="$(terminal_columns)"
-  width=$((columns < 150 ? columns : 150))
+  content_width=$((columns < 150 ? columns : 150))
 
   if ((${#SCHEDULE[@]} == 0)); then
     render_empty "$columns"
@@ -772,12 +772,12 @@ render_dashboard() {
     remaining=$((start_epoch - now_epoch))
   fi
   banner="$(banner_duration "$remaining")"
-  rule="$(repeat_character '=' "$width")"
+  rule="$(repeat_character '=' "$columns")"
 
   printf '%s%s%s\n' "$CYAN" "$rule" "$RESET"
   printf '\n'
   printf '%s%s' "$BOLD" "$YELLOW"
-  print_large_countdown "$banner" "$width"
+  print_large_countdown "$banner" "$columns"
   printf '%s' "$RESET"
   printf '\n%s%s%s\n' "$CYAN" "$rule" "$RESET"
   printf '\n%sOUTAGE SCHEDULE (%d)%s\n\n' "$BOLD" "${#SCHEDULE[@]}" "$RESET"
@@ -785,13 +785,13 @@ render_dashboard() {
   for schedule_line in "${SCHEDULE[@]}"; do
     IFS=$'\t' read -r ignored phase start_epoch stop_epoch record <<<"$schedule_line"
     render_event "$schedule_line" "$now_epoch"
-    printf '%s\n' "$DIM$(repeat_character '-' "$width")$RESET"
+    printf '%s\n' "$DIM$(repeat_character '-' "$columns")$RESET"
   done
 }
 
 main() {
   local now_epoch next_refresh=0 refresh_minutes=10 refresh_seconds state_ready=0
-  local last_rendered=-1 next_transition=0 rebuild_schedule=0 frame key
+  local last_rendered=-1 next_transition=0 rebuild_schedule=0 frame key input_fd=0
 
   while (($#)); do
     case "$1" in
@@ -833,17 +833,23 @@ main() {
   STATE_PATH="$(mktemp "${TMPDIR:-/tmp}/blackout-state.XXXXXX")"
   DOWNLOAD_PATH="$(mktemp "${TMPDIR:-/tmp}/blackout-download.XXXXXX")"
   REFRESH_STATUS_PATH="$(mktemp "${TMPDIR:-/tmp}/blackout-refresh.XXXXXX")"
+  if [[ -r /dev/tty ]]; then
+    exec {input_fd}</dev/tty
+  fi
   start_terminal
 
   while true; do
-    printf -v now_epoch '%(%s)T' -1
-    if ((now_epoch == last_rendered)); then
-      if [[ -t 0 ]]; then
+    if [[ -t "$input_fd" ]]; then
       key=""
-        if read -rsn 1 -t 0.1 key && [[ "$key" == "q" || "$key" == "Q" ]]; then
+      if read -u "$input_fd" -rsn 1 -t 0.1 key \
+        && [[ "$key" == "q" || "$key" == "Q" ]]; then
         break
       fi
-      else
+    fi
+
+    printf -v now_epoch '%(%s)T' -1
+    if ((now_epoch == last_rendered)); then
+      if [[ ! -t "$input_fd" ]]; then
         sleep 0.1
       fi
       continue
@@ -882,9 +888,6 @@ main() {
       if [[ -n "$REFRESH_ERROR" ]]; then
         printf '\n%s\n' "$REFRESH_ERROR"
       fi
-      if [[ -t 0 ]]; then
-        printf '\nPress q to quit.\n'
-      fi
     )"
     draw_frame "$frame"
   done

tests/test_main.sh

@@ -162,6 +162,13 @@ if [[ "$OUTPUT" == *$'\033['* ]]; then
   printf 'FAIL: NO_COLOR output contains ANSI escapes\n' >&2
   exit 1
 fi
+WIDE_OUTPUT="$(NO_COLOR=1 COLUMNS=180 render_dashboard "$NOW_EPOCH")"
+WIDE_TOP_LINE="${WIDE_OUTPUT%%$'\n'*}"
+assert_equal "180" "${#WIDE_TOP_LINE}" \
+  "the countdown divider should span the full terminal width"
+WIDE_BOTTOM_LINE="${WIDE_OUTPUT##*$'\n'}"
+assert_equal "180" "${#WIDE_BOTTOM_LINE}" \
+  "the dashboard bottom divider should span the full terminal width"
 
 FUTURE_NOW="$(TZ=Asia/Tehran date -d '2026-07-18 15:00:00' +%s)"
 build_schedule "$FIXTURE" "$FUTURE_NOW"