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/server/db/schema/index.ts

@@ -34,3 +34,4 @@ export * from './worldtodo';
 export * from './osu-goals';
 export * from './notes';
 export * from './math';
+export * from './plant';

src/lib/server/db/schema/plant.ts

@@ -0,0 +1,118 @@
+import { sql } from 'drizzle-orm';
+import {
+	boolean,
+	check,
+	index,
+	integer,
+	text,
+	uniqueIndex,
+	type AnyPgColumn
+} from 'drizzle-orm/pg-core';
+import { plantSchema } from './schemas';
+import { id, timestamps, timestamptz } from './helpers';
+
+// Cargill plant tracker (/trackers/cargill, owner-only): what the Cargill Bioindustrial plant
+// does. One generic `entries` table (departments, products, process steps, equipment, glossary,
+// questions, notes, roles) plus typed `links` between them. Bots apply JSON with
+// `select plant.apply_entries('{...}'::jsonb)` (shape documented in the migration and in
+// docs/plant-tracker.md). Kinds, confidences and relations are kept in sync with #lib/plant.
+
+export const plantEntries = plantSchema.table(
+	'entries',
+	{
+		id: id(),
+		/** process_step | product | department | equipment | glossary | question | note | person_role */
+		kind: text('kind').notNull(),
+		/** Unique per kind; used in URLs and by apply_entries. */
+		slug: text('slug').notNull(),
+		title: text('title').notNull(),
+		summary: text('summary'),
+		/** Markdown. */
+		body: text('body'),
+		parentId: integer('parent_id').references((): AnyPgColumn => plantEntries.id, {
+			onDelete: 'set null',
+			onUpdate: 'cascade'
+		}),
+		tags: text('tags')
+			.array()
+			.notNull()
+			.default(sql`'{}'::text[]`),
+		sortOrder: integer('sort_order').notNull().default(0),
+		/** Where it came from, e.g. "page 2026-10-26", "Walter White", "Stan". */
+		source: text('source'),
+		/** confirmed (checked at work) | assumed (from the guide) | open (unknown). */
+		confidence: text('confidence').notNull().default('assumed'),
+		/** Questions: when it was answered (null = still open). */
+		answeredAt: timestamptz('answered_at'),
+		...timestamps
+	},
+	(t) => [
+		uniqueIndex('entries_kind_slug_key').on(t.kind, t.slug),
+		index('entries_parent_idx').on(t.parentId),
+		check(
+			'entries_kind_check',
+			sql`${t.kind} IN ('process_step','product','department','equipment','glossary','question','note','person_role')`
+		),
+		check('entries_confidence_check', sql`${t.confidence} IN ('confirmed','assumed','open')`),
+		check('entries_slug_check', sql`${t.slug} ~ '^[a-z0-9]+(-[a-z0-9]+)*$'`)
+	]
+);
+
+export const plantLinks = plantSchema.table(
+	'links',
+	{
+		id: id(),
+		fromId: integer('from_id')
+			.notNull()
+			.references(() => plantEntries.id, { onDelete: 'cascade', onUpdate: 'cascade' }),
+		toId: integer('to_id')
+			.notNull()
+			.references(() => plantEntries.id, { onDelete: 'cascade', onUpdate: 'cascade' }),
+		/** feeds_into | made_in | uses | part_of | related */
+		relation: text('relation').notNull(),
+		/** Short edge label, e.g. "fatty acids". */
+		label: text('label'),
+		/** Drawn dashed in the flow (optional path or a loop back); doesn't push layers down. */
+		dashed: boolean('dashed').notNull().default(false),
+		/** confirmed | assumed | open; not-confirmed links are drawn dashed with a "?". */
+		confidence: text('confidence').notNull().default('confirmed'),
+		createdAt: timestamptz('created_at').notNull().defaultNow()
+	},
+	(t) => [
+		check('links_confidence_check', sql`${t.confidence} IN ('confirmed','assumed','open')`),
+		uniqueIndex('links_from_to_relation_key').on(t.fromId, t.toId, t.relation),
+		index('links_to_idx').on(t.toId),
+		check(
+			'links_relation_check',
+			sql`${t.relation} IN ('feeds_into','made_in','uses','part_of','related')`
+		),
+		check('links_not_self_check', sql`${t.fromId} <> ${t.toId}`)
+	]
+);
+
+/** Parents and links whose target isn't in the tracker yet. apply_entries retries them on every
+ * run, so a later batch that adds the target resolves them; the detail page lists them as pending. */
+export const plantPending = plantSchema.table(
+	'pending',
+	{
+		id: id(),
+		fromId: integer('from_id')
+			.notNull()
+			.references(() => plantEntries.id, { onDelete: 'cascade', onUpdate: 'cascade' }),
+		/** "parent" or a link relation. */
+		field: text('field').notNull(),
+		/** The reference as given ("slug" or "kind:slug"). */
+		toRef: text('to_ref').notNull(),
+		label: text('label'),
+		dashed: boolean('dashed').notNull().default(false),
+		confidence: text('confidence').notNull().default('confirmed'),
+		createdAt: timestamptz('created_at').notNull().defaultNow()
+	},
+	(t) => [
+		uniqueIndex('pending_from_field_ref_key').on(t.fromId, t.field, t.toRef),
+		check(
+			'pending_field_check',
+			sql`${t.field} IN ('parent','feeds_into','made_in','uses','part_of','related')`
+		)
+	]
+);

src/lib/server/db/schema/schemas.ts

@@ -30,3 +30,4 @@ export const moviesSchema = pgSchema('movies');
 export const worldtodoSchema = pgSchema('worldtodo');
 export const notesSchema = pgSchema('notes');
 export const mathSchema = pgSchema('math');
+export const plantSchema = pgSchema('plant');