feat: add provisioning lifecycle actions

Rename Deployments to Provisioning with compatible redirects and APIs. Add durable Start, Restart, Stop, and Rebuild operations alongside Create and Destroy; rebuild wipes the instance and recreates it in the same slot and port.

Add lifecycle, migration, recovery, and Komodo command tests. Type checks and production build pass; the full suite retains a telemetry assertion failure reproduced on the unchanged branch.

Refs #39

src/lib/server/fleet/provisioning.ts

@@ -5,5 +5,5 @@ export function isProvisioning(server: string): boolean {
     const operation = db().prepare(`SELECT action, state FROM server_deployments
         WHERE server = ? ORDER BY rowid DESC LIMIT 1`).get(server) as
         { action: string; state: string } | undefined;
-    return operation?.action === 'create' && ['queued', 'running', 'awaiting-health'].includes(operation.state);
+    return !!operation && ['create', 'rebuild', 'start'].includes(operation.action) && ['queued', 'running', 'awaiting-health'].includes(operation.state);
 }