feat(v5): move clusters to dedicated page and remove CLI services

Extract clusters out of Home into a standalone Clusters page with its
own controller action and route. Delete CoolifyCliBootstrap and
CoolifyCliVersion services along with the coolifyCliVersion endpoint.

Add Dialog component, warning CSS token, Inertia progress bar, and a
Clusters nav link. Extend V5Server type with ssh/builder/key fields.

resources/css/v5/app.css

@@ -28,6 +28,7 @@
     --color-accent-foreground: var(--accent-foreground);
     --color-destructive: var(--destructive);
     --color-destructive-foreground: var(--destructive-foreground);
+    --color-warning: var(--warning);
     --color-border: var(--border);
     --color-input: var(--input);
     --color-ring: var(--ring);
@@ -72,6 +73,7 @@
     --accent-foreground: oklch(0.21 0.006 285.885);
     --destructive: oklch(0.577 0.245 27.325);
     --destructive-foreground: oklch(0.985 0 0);
+    --warning: #fcd452;
     --border: oklch(0.92 0.004 286.32);
     --input: oklch(0.92 0.004 286.32);
     --ring: oklch(0.705 0.015 286.067);
@@ -107,6 +109,7 @@
     --accent-foreground: oklch(0.985 0 0);
     --destructive: oklch(0.704 0.191 22.216);
     --destructive-foreground: oklch(0.985 0 0);
+    --warning: #fcd452;
     --border: oklch(1 0 0 / 10%);
     --input: oklch(1 0 0 / 15%);
     --ring: oklch(0.552 0.016 285.938);