docs(spikes): Deno 2.9.7 + TS 7 compatibility spike and ADR-004

Co-Authored-By: Claude Fable 5.1 <[email protected]>

spikes/deno/apps/server/src/migrations/0001_init.ts

@@ -0,0 +1,10 @@
+import { type Kysely, sql } from "kysely";
+export async function up(db: Kysely<any>) {
+  await db.schema.createTable("items").ifNotExists()
+    .addColumn("id", "bigserial", (c) => c.primaryKey())
+    .addColumn("title", "text", (c) => c.notNull())
+    .addColumn("meta", "jsonb")
+    .addColumn("created_at", "timestamptz", (c) => c.notNull().defaultTo(sql`now()`))
+    .execute();
+}
+export async function down(db: Kysely<any>) { await db.schema.dropTable("items").execute(); }

spikes/deno/apps/server/src/migrations/0002_index.ts

@@ -0,0 +1,5 @@
+import type { Kysely } from "kysely";
+export async function up(db: Kysely<any>) {
+  await db.schema.createIndex("items_title_idx").ifNotExists().on("items").column("title").execute();
+}
+export async function down(db: Kysely<any>) { await db.schema.dropIndex("items_title_idx").execute(); }