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/tracker-icons.ts

@@ -96,6 +96,13 @@ export const trackerIcons: Record<string, TrackerIcon> = {
 			'M20 3v4M22 5h-4M4 17v2M5 18H3'
 		]
 	},
+	cargill: {
+		from: '#a3e635',
+		to: '#4d7c0f',
+		ink: WHITE,
+		// factory: saw-tooth roof, chimney and windows
+		paths: ['M3 20V10l5 3V10l5 3V10l5 3V4h3v16z', 'M7 17h1M11 17h1M15 17h1']
+	},
 	math: {
 		from: '#60a5fa',
 		to: '#1e40af',