refactor(core): move database schema ownership (#29068)

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>

packages/opencode/src/sync/event.sql.ts

@@ -1,17 +0,0 @@
-import { sqliteTable, text, integer } from "drizzle-orm/sqlite-core"
-
-export const EventSequenceTable = sqliteTable("event_sequence", {
-  aggregate_id: text().notNull().primaryKey(),
-  seq: integer().notNull(),
-  owner_id: text(),
-})
-
-export const EventTable = sqliteTable("event", {
-  id: text().primaryKey(),
-  aggregate_id: text()
-    .notNull()
-    .references(() => EventSequenceTable.aggregate_id, { onDelete: "cascade" }),
-  seq: integer().notNull(),
-  type: text().notNull(),
-  data: text({ mode: "json" }).$type<Record<string, unknown>>().notNull(),
-})