[Feat] Monitoring Improvements

[RichardAnderson]

This pull request significantly extends the server monitoring metrics system by adding support for a wide range of additional system statistics, improving both backend data handling and frontend display. The changes include database schema updates, model and API enhancements, and frontend adjustments to support and visualize the new metrics.

[Copilot]

Pull request overview

This PR expands Vito’s monitoring system to collect and display additional server health metrics (CPU core info, CPU usage/steal, swap, uptime, reboot-required state, and OOM kill count), adds an agent ingestion endpoint, and updates the UI to surface these signals (including warning banners).

Changes:

• Extend metric collection/storage to include CPU, swap, uptime, reboot-required, and OOM kill stats (SSH collector + DB schema + model casting).
• Add an API endpoint + Action to accept metrics from the Vito Agent and update tests accordingly.
• Refresh monitoring UI/UX (new detailed CPU/Memory/Disk views, reusable warning banners, server list warning indicator).

Reviewed changes

Copilot reviewed 34 out of 36 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
tests/Unit/Commands/GetMetricsCommandTest.php	Expands command test coverage for newly collected SSH metrics.
tests/Feature/MetricsTest.php	Adds feature coverage for monitoring.json returning current + history.
tests/Feature/API/AgentControllerTest.php	Introduces API tests for agent metric ingestion, auth, and validation.
resources/views/ssh/os/resource-info.blade.php	Extends SSH script output with additional system stats.
resources/js/types/server.d.ts	Adds warnings typing for server list/overview warning UI.
resources/js/types/metric.d.ts	Updates metric typings and introduces MetricsResponse/CurrentMetric.
resources/js/pages/servers/overview.tsx	Adds server banners and reboot-required detection via metrics query.
resources/js/pages/servers/index.tsx	Displays per-server warning count indicator in the table actions.
resources/js/pages/servers/components/update-server.tsx	Improves update confirmation copy and dialog structure.
resources/js/pages/servers/components/reboot-server.tsx	Renames “Reboot” to “Restart” and improves confirmation copy.
resources/js/pages/servers/components/actions.tsx	Updates dropdown label to “Restart”.
resources/js/pages/monitoring/show.tsx	Replaces generic cards view with dedicated CPU/Memory/Disk views.
resources/js/pages/monitoring/index.tsx	Adds system status + refactors memory/disk details into a component.
resources/js/pages/monitoring/components/use-metrics.ts	New shared React Query hook for fetching metrics with refetch intervals.
resources/js/pages/monitoring/components/system-status.tsx	New status tiles for uptime/reboot/OOM/core counts.
resources/js/pages/monitoring/components/stat-tile.tsx	New reusable stat tile component.
resources/js/pages/monitoring/components/resource-usage-chart.tsx	Generalizes chart to arbitrary metric keys and improves empty-state handling.
resources/js/pages/monitoring/components/metrics-cards.tsx	Switches to %-based memory/disk charts and reuses useMetrics.
resources/js/pages/monitoring/components/memory-view.tsx	New memory-focused monitoring view with swap/OOM context.
resources/js/pages/monitoring/components/memory-disk-details.tsx	New extracted component for index-page memory/disk detail cards.
resources/js/pages/monitoring/components/disk-view.tsx	New disk-focused view (capacity bar + trend charts).
resources/js/pages/monitoring/components/cpu-view.tsx	New CPU-focused view (usage/load/steal charts + tiles).
resources/js/lib/utils.ts	Adds humanizeSeconds() for uptime formatting.
resources/js/components/site-banners.tsx	Refactors site warnings UI to use shared banner components.
resources/js/components/server-banners.tsx	New server warning banners (updates + reboot required).
resources/js/components/banners.tsx	New shared warning banner primitives (row + collapsible block).
database/migrations/2026_05_23_120000_add_extended_stats_to_metrics_table.php	Adds extended stats columns to the metrics table.
database/factories/MetricFactory.php	Updates metric factory with new fields for testing/seeding.
app/Tables/ServerTable.php	Adds warnings data column and eager-loads latestMetric for server list.
app/SSH/OS/OS.php	Parses new SSH output fields into the metrics payload.
app/Models/Server.php	Adds latestMetric() relationship for warning/banner logic.
app/Models/Metric.php	Adds new fields, casts, and rounding/JSON attribute handling.
app/Http/Controllers/MonitoringController.php	Removes lastMetric prop and serves metrics via monitoring.json.
app/Http/Controllers/API/AgentController.php	Switches to Action-based ingestion and adds constant-time secret check.
app/Actions/Monitoring/StoreAgentMetric.php	New Action for validating and storing agent-submitted metrics.
app/Actions/Monitoring/GetMetrics.php	Returns { current, history } and enriches history with derived percent fields.