feat(statusline): rate-limit burndown colors + reset times

- Show 5h reset as HH:MM and 7d reset as "Day HH:MM" from rate_limits.*.resets_at
- Color 5h/7d pill+arrow by burndown vs expected rate (5h: 20%/h, 7d: 14%/day)
- Green if available% >= expected, yellow if >= expected/2, red otherwise
- Add separator between 5h and 7d blocks

.claude/statusline.sh

@@ -49,6 +49,14 @@ LINES_REMOVED=$(echo "$INPUT" | jq -r '.cost.total_lines_removed // 0')
 # Rate Limits
 RATE_5H=$(echo "$INPUT" | jq -r '.rate_limits.five_hour.used_percentage // 0' | xargs printf "%.0f")
 RATE_7D=$(echo "$INPUT" | jq -r '.rate_limits.seven_day.used_percentage // 0' | xargs printf "%.0f")
+RESET_5H_EPOCH=$(echo "$INPUT" | jq -r '.rate_limits.five_hour.resets_at // 0')
+RESET_7D_EPOCH=$(echo "$INPUT" | jq -r '.rate_limits.seven_day.resets_at // 0')
+
+# Formatear resets (vacio si epoch=0)
+RESET_5H=""
+RESET_7D=""
+[ "$RESET_5H_EPOCH" -gt 0 ] && RESET_5H=$(date -d "@$RESET_5H_EPOCH" +"%H:%M" 2>/dev/null)
+[ "$RESET_7D_EPOCH" -gt 0 ] && RESET_7D=$(date -d "@$RESET_7D_EPOCH" +"%a %H:%M" 2>/dev/null)
 
 # Git info (si estamos en un repo)
 GIT_BRANCH=""
@@ -190,23 +198,49 @@ LINE2="${LINE2} ${GRAY}│${RESET} ${DIM}Total:${RESET} ${CYAN}↓${TOTAL_IN_FMT
 # 4. Rate Limits (siempre mostrar)
 LINE2="${LINE2} ${GRAY}│${RESET} ${BOLD}Limits:${RESET}"
 
-# 5h limit
+# Color por burndown vs tasa esperada
-if [ "$RATE_5H" -ge 80 ]; then
+# Tasa: % consumible permitido por unidad de tiempo (5h: 20%/h, 7d: 14%/dia)
-    LINE2="${LINE2} ${RED}5h:${RATE_5H}%${RESET}"
+# expected = tasa * unidades_restantes_hasta_reset
-elif [ "$RATE_5H" -ge 50 ]; then
+# available = 100 - used%
-    LINE2="${LINE2} ${YELLOW}5h:${RATE_5H}%${RESET}"
+# verde: available >= expected (consumo bajo control)
-else
+# amarillo: available >= expected/2 (consumo agresivo)
-    LINE2="${LINE2} ${GREEN}5h:${RATE_5H}%${RESET}"
+# rojo: available < expected/2 (riesgo de agotar antes del reset)
-fi
+NOW_EPOCH=$(date +%s)
+burndown_color() {
+    local used_pct=$1
+    local secs_left=$2
+    local rate=$3
+    local secs_per_unit=$4
+    local available=$((100 - used_pct))
+    if [ "$secs_left" -le 0 ]; then
+        printf "%s" "$GREEN"; return
+    fi
+    local expected
+    expected=$(echo "scale=2; $rate * $secs_left / $secs_per_unit" | bc)
+    if (( $(echo "$available >= $expected" | bc -l) )); then
+        printf "%s" "$GREEN"
+    elif (( $(echo "$available >= $expected / 2" | bc -l) )); then
+        printf "%s" "$YELLOW"
+    else
+        printf "%s" "$RED"
+    fi
+}
 
-# 7d limit
+# 5h limit (tasa 20%/h)
-if [ "$RATE_7D" -ge 80 ]; then
+SECS_5H=0
-    LINE2="${LINE2} ${RED}7d:${RATE_7D}%${RESET}"
+[ "$RESET_5H_EPOCH" -gt "$NOW_EPOCH" ] && SECS_5H=$((RESET_5H_EPOCH - NOW_EPOCH))
-elif [ "$RATE_7D" -ge 50 ]; then
+C5=$(burndown_color $RATE_5H $SECS_5H 20 3600)
-    LINE2="${LINE2} ${YELLOW}7d:${RATE_7D}%${RESET}"
+RESET_5H_STR=""
-else
+[ -n "$RESET_5H" ] && RESET_5H_STR=" ${C5}→${RESET_5H}${RESET}"
-    LINE2="${LINE2} ${GREEN}7d:${RATE_7D}%${RESET}"
+LINE2="${LINE2} ${C5}5h:${RATE_5H}%${RESET}${RESET_5H_STR} ${GRAY}│${RESET}"
-fi
+
+# 7d limit (tasa 14%/dia)
+SECS_7D=0
+[ "$RESET_7D_EPOCH" -gt "$NOW_EPOCH" ] && SECS_7D=$((RESET_7D_EPOCH - NOW_EPOCH))
+C7=$(burndown_color $RATE_7D $SECS_7D 14 86400)
+RESET_7D_STR=""
+[ -n "$RESET_7D" ] && RESET_7D_STR=" ${C7}→${RESET_7D}${RESET}"
+LINE2="${LINE2} ${C7}7d:${RATE_7D}%${RESET}${RESET_7D_STR}"
 
 # 5. Duración sesión
 if [ "$SESSION_DURATION" -gt 0 ]; then