feat(frontend): Kinetic Precision design system — new lime theme, glassmorphism, redesigned pages

- New design system: Stitch (kinetic-precision.css) with lime (#cafd00) accent
- New Google Fonts: Lexend, Plus Jakarta Sans, Space Grotesk
- New page: BenchmarksPage with strength/endurance/body tracking
- Redesigned: Dashboard, ProgressPage, WorkoutPage, LoginPage + LoginPage.css
- Add shared glassmorphism nav, kinetic buttons, intensity indicators
- Build: 265KB JS / 88KB CSS / 2.54s (clean)

scripts/preflight/02-health-check.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+# Service Health Check Framework
+NAMESPACE="gravl-prod"
+echo "=== Service Health Checks ==="
+kubectl get pods -n "$NAMESPACE" -o wide
+echo ""
+echo "Pod status summary:"
+kubectl get pods -n "$NAMESPACE" --no-headers | \
+  awk '{print $3}' | sort | uniq -c