plant: private Cargill Gouda tracker (/trackers/cargill)

Owner-only tracker for learning the Cargill Bioindustrial plant in Gouda:
schema plant (entries, links with confidence, pending refs), plant.apply_entries
bulk import, overview with clusters and flow diagram, kind tabs, glossary,
questions, detail pages and owner inline editing. Docs in docs/plant-tracker.md.

src/lib/plant/KindIcon.svelte

@@ -0,0 +1,51 @@
+<script lang="ts">
+	// A small gradient tile with the kind's icon (colourful icons on a black-and-white page).
+	import { KIND_COLOR, KIND_LABEL, type PlantKind } from '#lib/plant.js';
+	import Workflow from 'lucide-svelte/icons/workflow';
+	import Package from 'lucide-svelte/icons/package';
+	import Building2 from 'lucide-svelte/icons/building-2';
+	import Wrench from 'lucide-svelte/icons/wrench';
+	import BookA from 'lucide-svelte/icons/book-a';
+	import CircleQuestionMark from 'lucide-svelte/icons/circle-question-mark';
+	import StickyNote from 'lucide-svelte/icons/sticky-note';
+	import UserRound from 'lucide-svelte/icons/user-round';
+
+	let { kind, size = 22 }: { kind: PlantKind; size?: number } = $props();
+
+	const ICONS = {
+		process_step: Workflow,
+		product: Package,
+		department: Building2,
+		equipment: Wrench,
+		glossary: BookA,
+		question: CircleQuestionMark,
+		note: StickyNote,
+		person_role: UserRound
+	} as const;
+	const Icon = $derived(ICONS[kind] ?? StickyNote);
+	const colors = $derived(KIND_COLOR[kind] ?? KIND_COLOR.note);
+</script>
+
+<span
+	class="kind-icon"
+	style:--from={colors[0]}
+	style:--to={colors[1]}
+	style:--size="{size}px"
+	title={KIND_LABEL[kind]?.one ?? kind}
+	aria-hidden="true"><Icon size={Math.round(size * 0.58)} strokeWidth={2.25} /></span
+>
+
+<style>
+	.kind-icon {
+		display: inline-flex;
+		align-items: center;
+		justify-content: center;
+		flex-shrink: 0;
+		width: var(--size);
+		height: var(--size);
+		border-radius: calc(var(--size) * 0.3);
+		color: #fff;
+		background: linear-gradient(135deg, var(--from), var(--to));
+		box-shadow: inset 0 0 0 1px rgb(255 255 255 / 0.12);
+	}
+</style>