Update Space colors: prod indigo, staging red

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

README.md

@@ -1,7 +1,7 @@
 ---
 title: NowAI-Bench
 emoji: 🏃
-colorFrom: purple
+colorFrom: indigo
 colorTo: gray
 sdk: static
 pinned: false

scripts/push-staging.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # Push main to staging HF Space and patch its title/color.
 #
-# README.md in git stays prod-canonical (title: NowAI-Bench, colorFrom: pink).
+# README.md in git stays prod-canonical (title: NowAI-Bench, colorFrom: indigo).
 # After each push, huggingface_hub.metadata_update() commits a README patch
 # directly on the staging Space. We force-push on the next run to overwrite it,
 # so that commit never needs to be merged locally.
@@ -10,7 +10,7 @@ set -euo pipefail
 STAGING_REMOTE="origin"
 STAGING_SPACE="ServiceNow-AI/NowAI-Bench-Staging"
 STAGING_TITLE="NowAI-Bench Staging"
-STAGING_COLOR="indigo"
+STAGING_COLOR="red"
 
 echo "→ Force-pushing to staging (overwrites prior metadata patch)..."
 git push --force "$STAGING_REMOTE" main