update doc and optimize

AINative_OKR_CASAN5/backend/scripts/make-sqlite-schema.mjs

@@ -0,0 +1,18 @@
+// Generates prisma/schema.sqlite.prisma from the canonical schema.prisma by
+// swapping only the datasource provider to sqlite. Keeping a single source of
+// truth for the models avoids drift; the sqlite schema is used for local tests
+// (PrismaClient with a mysql provider cannot use a `file:` URL).
+import { readFileSync, writeFileSync } from 'node:fs';
+import { resolve } from 'node:path';
+
+const src = resolve('prisma/schema.prisma');
+const dest = resolve('prisma/schema.sqlite.prisma');
+
+const original = readFileSync(src, 'utf8');
+if (!/provider\s*=\s*"mysql"/.test(original)) {
+  throw new Error('Expected datasource provider "mysql" in schema.prisma');
+}
+const sqlite = original.replace(/provider\s*=\s*"mysql"/, 'provider = "sqlite"');
+const banner = '// AUTO-GENERATED from schema.prisma by scripts/make-sqlite-schema.mjs — do not edit.\n';
+writeFileSync(dest, banner + sqlite);
+console.log(`Wrote ${dest} (sqlite provider) from schema.prisma`);

AINative_OKR_CASAN5/backend/scripts/setup-sqlite.mjs

@@ -1,27 +0,0 @@
-import { mkdirSync, readFileSync, rmSync } from 'node:fs';
-import { dirname, resolve } from 'node:path';
-import { DatabaseSync } from 'node:sqlite';
-
-function databasePathFromUrl(url) {
-  if (!url?.startsWith('file:')) {
-    throw new Error('DATABASE_URL must use SQLite file: URL');
-  }
-  const rawPath = url.slice('file:'.length);
-  if (rawPath.startsWith('/')) {
-    return rawPath;
-  }
-  return resolve('prisma', rawPath);
-}
-
-const databasePath = databasePathFromUrl(process.env.DATABASE_URL ?? 'file:./dev.db');
-mkdirSync(dirname(databasePath), { recursive: true });
-rmSync(databasePath, { force: true });
-rmSync(`${databasePath}-journal`, { force: true });
-
-const sql = readFileSync(resolve('prisma/migrations/202606280001_init/migration.sql'), 'utf8');
-const db = new DatabaseSync(databasePath);
-db.exec('PRAGMA foreign_keys = ON;');
-db.exec(sql);
-db.close();
-
-console.log(`SQLite schema applied to ${databasePath}`);