Show pipeline creation time as relative 'X ago' format

- Added format_time_ago() function
- Handles both GNU date (Linux) and BSD date (macOS)
- Properly parses ISO 8601 timestamps with UTC timezone
- Shows: 30s ago, 5m ago, 2h ago, 3d ago
- Changed 'Created' field from raw timestamp to human-readable format

scripts/monitor-deploy.sh

@@ -185,6 +185,51 @@ format_duration() {
     fi
 }
 
+format_time_ago() {
+    local timestamp=$1
+    if [ -z "$timestamp" ] || [ "$timestamp" = "null" ]; then
+        echo "Unknown"
+        return
+    fi
+
+    # Convert ISO 8601 timestamp to Unix epoch
+    # Handle both GNU date and BSD date (macOS)
+    local created_epoch
+    if date --version >/dev/null 2>&1; then
+        # GNU date
+        created_epoch=$(date -d "$timestamp" +%s 2>/dev/null)
+    else
+        # BSD date (macOS) - strip milliseconds and timezone, then parse as UTC
+        local clean_timestamp=$(echo "$timestamp" | sed 's/\.[0-9]*Z$//')
+        created_epoch=$(date -j -u -f "%Y-%m-%dT%H:%M:%S" "$clean_timestamp" +%s 2>/dev/null)
+    fi
+
+    if [ -z "$created_epoch" ]; then
+        echo "Unknown"
+        return
+    fi
+
+    local now=$(date +%s)
+    local seconds_ago=$((now - created_epoch))
+
+    # Handle negative values (future timestamps)
+    if [ $seconds_ago -lt 0 ]; then
+        seconds_ago=$((seconds_ago * -1))
+        echo "in ${seconds_ago}s"
+        return
+    fi
+
+    if [ $seconds_ago -lt 60 ]; then
+        echo "${seconds_ago}s ago"
+    elif [ $seconds_ago -lt 3600 ]; then
+        echo "$((seconds_ago / 60))m ago"
+    elif [ $seconds_ago -lt 86400 ]; then
+        echo "$((seconds_ago / 3600))h ago"
+    else
+        echo "$((seconds_ago / 86400))d ago"
+    fi
+}
+
 print_header() {
     clear
     echo -e "${CYAN}╔════════════════════════════════════════════════════════════════╗${NC}"
@@ -220,7 +265,7 @@ monitor_pipeline() {
         echo -e "${BLUE}Branch:${NC} $branch"
         echo -e "${BLUE}Local HEAD:${NC} $local_sha"
         echo -e "${BLUE}Pipeline:${NC} #$pipeline_id"
-        echo -e "${BLUE}Created:${NC} $pipeline_created"
+        echo -e "${BLUE}Created:${NC} $(format_time_ago "$pipeline_created")"
         echo -e "${BLUE}Commit:${NC} ${pipeline_sha:0:8}"
 
         # Warn if local commit doesn't match pipeline commit