fix(dashboard): equalize KPI card heights

[TerrifiedBug]

Summary

Fixes Notion bug: dashboard cards inconsistently sized.

KPI summary cards on the dashboard had visibly mismatched heights within the same row because card content varies (single AnimatedNumber vs multi-StatusBadge vs reduction-with-subtext).

• Add `auto-rows-fr` to the KPI grid + skeleton + empty-state grids so all cards in a row stretch to the same height
• Add `h-full` to StaggerItem, Card, and CardContent so cards fill the grid row evenly

Test plan

• Dashboard with mixed states (some KPIs zero, some with multiple status badges) shows uniform card heights
• Skeleton state cards size identically
• Empty-state (no environments) onboarding cards size identically
• No regression on responsive (md:grid-cols-2 vs lg:grid-cols-6 wrap)

Greptile Summary

This PR adds auto-rows-fr to the three KPI/skeleton/onboarding grids on the dashboard and propagates h-full through StaggerItem, Card, and CardContent so every card in a row stretches to match the tallest sibling. The StaggerItem component already accepted className, so the new prop is wired correctly.

Confidence Score: 5/5

Safe to merge — pure layout change with no logic, data, or security implications.

All changes are additive Tailwind class additions. StaggerItem already accepts className, Card/CardContent are standard shadcn primitives, and the h-full chain is wired correctly through every level. No regressions expected on the responsive grid breakpoints.

No files require special attention.

Important Files Changed

Filename	Overview
src/app/(dashboard)/page.tsx	Adds auto-rows-fr to KPI/skeleton/onboarding grids and h-full to StaggerItem, Card, and (where needed) CardContent; straightforward and correct layout fix with no logic changes.

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A["Grid container\ngrid auto-rows-fr"] --> B["StaggerItem div\nh-full (direct grid child)"]
    B --> C["Card\nh-full"]
    C --> D["CardContent\nh-full (onboarding only)"]
    C --> E["CardContent\n(KPI / skeleton — top-aligned content)"]

    style A fill:#4f46e5,color:#fff
    style B fill:#7c3aed,color:#fff
    style C fill:#2563eb,color:#fff
    style D fill:#059669,color:#fff
    style E fill:#6b7280,color:#fff

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