fix(db): allow 'dataset' in installed_resources.resource_type

The model declares `'zim' | 'map' | 'dataset'` and IngestDrugDataJob writes a
'dataset' row for the openFDA drug labels, but the column was still
enum('zim','map') from the table's original migration. Every write failed:

  Data truncated for column 'resource_type' at row 1
  insert into `installed_resources` (... `resource_type`, ...) values
  (..., 'openfda-drug-labels', 'dataset', ...)

The ingest itself succeeded — 261,671 rows landed in drug_labels — but the
install-state write-back at the end of the job was lost every time. Since
getCategoriesWithStatus() resolves a tier only when every resource id is
accounted for, and it already queries whereIn('resource_type', ['zim',
'dataset']), the missing row kept the Medicine category from ever resolving
its Standard or Comprehensive tier. Only the enum was left behind.

Verified against a live install: after the migration the previously failing
insert succeeds, and Medicine resolves installedTierSlug
'medicine-comprehensive'.

down() drops 'dataset' rows before narrowing the column, since MySQL would
otherwise truncate them to '' or fail under STRICT_TRANS_TABLES.

admin/database/migrations/1778800000001_add_dataset_to_installed_resources_type.ts

@@ -0,0 +1,34 @@
+import { BaseSchema } from '@adonisjs/lucid/schema'
+
+/**
+ * Widen `installed_resources.resource_type` to accept 'dataset'.
+ *
+ * The model already declares `'zim' | 'map' | 'dataset'` and
+ * `IngestDrugDataJob` writes a 'dataset' row for the openFDA drug labels, but
+ * the column was still `enum('zim','map')` from the table's original
+ * migration. Every write failed with "Data truncated for column
+ * 'resource_type'", so the drug reference ingested its 261k labels and then
+ * left no install-state row — the tier-status math and the home-tile gate both
+ * read those rows, so the resource stayed invisible to them.
+ */
+export default class extends BaseSchema {
+  protected tableName = 'installed_resources'
+
+  async up() {
+    await this.db.rawQuery(
+      "ALTER TABLE installed_resources MODIFY COLUMN resource_type " +
+        "enum('zim','map','dataset') NOT NULL"
+    )
+  }
+
+  async down() {
+    // Rows that only exist because of this widening have to go before the
+    // column can be narrowed again; MySQL would otherwise truncate them to ''
+    // (or fail outright under STRICT_TRANS_TABLES).
+    await this.db.rawQuery("DELETE FROM installed_resources WHERE resource_type = 'dataset'")
+    await this.db.rawQuery(
+      "ALTER TABLE installed_resources MODIFY COLUMN resource_type " +
+        "enum('zim','map') NOT NULL"
+    )
+  }
+}