Small UI cleanup, auto-refresh, and per-kind artifact routes

- Remove redundant "manage scripts" button and pipeline sidebar from Fleet page
- Bump log tail default 200 -> 1000 lines
- Auto-refresh (5s) on deployments list/detail, betas list, server detail, and artifact detail
- Drift ignores dedicated.cfg (Plutonium MP config; regenerates if deleted)
- Extract ArtifactDetail component; mount under /scripts/[id], /configs/[id], /plugins/[id] so configs and plugins no longer land on /scripts URLs

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/routes/deployments/[id]/+page.svelte

@@ -1,5 +1,5 @@
 <script lang="ts">
-    import { onMount } from 'svelte';
+    import { onMount, onDestroy } from 'svelte';
     import { page } from '$app/stores';
     import DiffViewer from '$ui/components/DiffViewer.svelte';
 
@@ -39,10 +39,19 @@
     let detail = $state<Detail | null>(null);
     let openFile = $state<{ id: number; before: string | null; after: string | null; verb: string; relPath: string } | null>(null);
 
-    onMount(async () => {
+    async function loadDetail(): Promise<void> {
         const id = $page.params.id;
         const res = await fetch(`/api/deployments/${id}`);
         detail = (await res.json()) as Detail;
+    }
+
+    let poll: ReturnType<typeof setInterval> | null = null;
+    onMount(() => {
+        loadDetail();
+        poll = setInterval(loadDetail, 5000);
+    });
+    onDestroy(() => {
+        if (poll) clearInterval(poll);
     });
 
     async function loadDiff(f: FileRow) {