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

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

packages/opencode/script/build-node.ts

@@ -1,7 +1,6 @@
 #!/usr/bin/env bun
 
 import { Script } from "@opencode-ai/script"
-import fs from "fs"
 import path from "path"
 import { fileURLToPath } from "url"
 
@@ -13,36 +12,6 @@ process.chdir(dir)
 
 const generated = await import("./generate.ts")
 
-// Load migrations from migration directories
-const migrationDirs = (
-  await fs.promises.readdir(path.join(dir, "migration"), {
-    withFileTypes: true,
-  })
-)
-  .filter((entry) => entry.isDirectory() && /^\d{4}\d{2}\d{2}\d{2}\d{2}\d{2}/.test(entry.name))
-  .map((entry) => entry.name)
-  .sort()
-
-const migrations = await Promise.all(
-  migrationDirs.map(async (name) => {
-    const file = path.join(dir, "migration", name, "migration.sql")
-    const sql = await Bun.file(file).text()
-    const match = /^(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})/.exec(name)
-    const timestamp = match
-      ? Date.UTC(
-          Number(match[1]),
-          Number(match[2]) - 1,
-          Number(match[3]),
-          Number(match[4]),
-          Number(match[5]),
-          Number(match[6]),
-        )
-      : 0
-    return { sql, timestamp, name }
-  }),
-)
-console.log(`Loaded ${migrations.length} migrations`)
-
 await Bun.build({
   target: "node",
   entrypoints: ["./src/node.ts"],
@@ -51,7 +20,6 @@ await Bun.build({
   sourcemap: "linked",
   external: ["jsonc-parser", "@lydell/node-pty"],
   define: {
-    OPENCODE_MIGRATIONS: JSON.stringify(migrations),
     OPENCODE_MODELS_DEV: generated.modelsData,
     OPENCODE_CHANNEL: `'${Script.channel}'`,
   },