feat(minigames): add creator bank and exposure toggle schema with migrations

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/collections/minigames/CustomMinefields.ts

@@ -69,6 +69,15 @@ export const CustomMinefields: CollectionConfig = {
       type: "checkbox",
       defaultValue: true,
     },
+    {
+      name: "exposeEdgeMines",
+      type: "checkbox",
+      defaultValue: true,
+      admin: {
+        description:
+          "On a failed run, reveal mines bordering the swept area. When off, no remaining mines are revealed.",
+      },
+    },
     {
       name: "playCount",
       type: "number",
@@ -77,6 +86,22 @@ export const CustomMinefields: CollectionConfig = {
         readOnly: true,
       },
     },
+    {
+      name: "creatorXpBank",
+      type: "number",
+      defaultValue: 0,
+      // Engine-managed payout ledger: only server actions may write it. Field
+      // access blocks REST/admin edits (overrideAccess in the actions bypasses
+      // this), so authors cannot credit their own bank.
+      access: {
+        update: () => false,
+      },
+      admin: {
+        readOnly: true,
+        description:
+          "Engine-managed: fractional XP bank for the author (5% of each player payout).",
+      },
+    },
   ],
   timestamps: true,
 };

src/migrations/20260908_193107_add_creator_xp_bank_field.ts

@@ -0,0 +1,11 @@
+import { MigrateUpArgs, MigrateDownArgs, sql } from '@payloadcms/db-postgres'
+
+export async function up({ db, payload, req }: MigrateUpArgs): Promise<void> {
+  await db.execute(sql`
+  ALTER TABLE "custom_minefields" ADD COLUMN IF NOT EXISTS "creator_xp_bank" numeric DEFAULT 0;`)
+}
+
+export async function down({ db, payload, req }: MigrateDownArgs): Promise<void> {
+  await db.execute(sql`
+  ALTER TABLE "custom_minefields" DROP COLUMN IF EXISTS "creator_xp_bank";`)
+}

src/migrations/20260908_194435_add_expose_edge_mines_field.ts

@@ -0,0 +1,11 @@
+import { MigrateUpArgs, MigrateDownArgs, sql } from '@payloadcms/db-postgres'
+
+export async function up({ db, payload, req }: MigrateUpArgs): Promise<void> {
+  await db.execute(sql`
+  ALTER TABLE "custom_minefields" ADD COLUMN IF NOT EXISTS "expose_edge_mines" boolean DEFAULT true;`)
+}
+
+export async function down({ db, payload, req }: MigrateDownArgs): Promise<void> {
+  await db.execute(sql`
+  ALTER TABLE "custom_minefields" DROP COLUMN IF EXISTS "expose_edge_mines";`)
+}

src/migrations/index.ts

@@ -46,6 +46,8 @@ import * as migration_20260907_120754_add_story_beats from './20260907_120754_ad
 import * as migration_20260907_124024_convert_story_beats_body_to_lexical from './20260907_124024_convert_story_beats_body_to_lexical';
 import * as migration_20260908_152021_add_opord_recall_minigame_stats from './20260908_152021_add_opord_recall_minigame_stats';
 import * as migration_20260908_172241_add_custom_minigame_collections from './20260908_172241_add_custom_minigame_collections';
+import * as migration_20260908_193107_add_creator_xp_bank_field from './20260908_193107_add_creator_xp_bank_field';
+import * as migration_20260908_194435_add_expose_edge_mines_field from './20260908_194435_add_expose_edge_mines_field';
 
 export const migrations = [
   {
@@ -281,11 +283,21 @@ export const migrations = [
   {
     up: migration_20260908_152021_add_opord_recall_minigame_stats.up,
     down: migration_20260908_152021_add_opord_recall_minigame_stats.down,
-    name: '20260908_152021_add_opord_recall_minigame_stats'
+    name: '20260908_152021_add_opord_recall_minigame_stats',
   },
   {
     up: migration_20260908_172241_add_custom_minigame_collections.up,
     down: migration_20260908_172241_add_custom_minigame_collections.down,
-    name: '20260908_172241_add_custom_minigame_collections'
+    name: '20260908_172241_add_custom_minigame_collections',
+  },
+  {
+    up: migration_20260908_193107_add_creator_xp_bank_field.up,
+    down: migration_20260908_193107_add_creator_xp_bank_field.down,
+    name: '20260908_193107_add_creator_xp_bank_field',
+  },
+  {
+    up: migration_20260908_194435_add_expose_edge_mines_field.up,
+    down: migration_20260908_194435_add_expose_edge_mines_field.down,
+    name: '20260908_194435_add_expose_edge_mines_field'
   },
 ];

src/payload-types.ts

@@ -3737,7 +3737,15 @@ export interface CustomMinefield {
     | null;
   mineCount: number;
   published?: boolean | null;
+  /**
+   * On a failed run, reveal mines bordering the swept area. When off, no remaining mines are revealed.
+   */
+  exposeEdgeMines?: boolean | null;
   playCount?: number | null;
+  /**
+   * Engine-managed: fractional XP bank for the author (5% of each player payout).
+   */
+  creatorXpBank?: number | null;
   updatedAt: string;
   createdAt: string;
 }
@@ -5792,7 +5800,9 @@ export interface CustomMinefieldsSelect<T extends boolean = true> {
   mines?: T;
   mineCount?: T;
   published?: T;
+  exposeEdgeMines?: T;
   playCount?: T;
+  creatorXpBank?: T;
   updatedAt?: T;
   createdAt?: T;
 }