fix: fix focus behaviour

backend/src/db.ts

@@ -1,8 +1,9 @@
 import Database from 'better-sqlite3';
 import { DB_PATH } from './config';
 import { logger } from './globals';
-import { readdir, readFile } from "fs/promises";
-import { join, dirname } from "path";
+import { readdir, readFile } from "fs/promises";
+import { existsSync, mkdirSync } from "fs";
+import { join, dirname } from "path";
 
 export let FTS5Enabled = true;
 
@@ -55,13 +56,25 @@ export const migrate = async () => {
   logger.info(`Migrations done`);
 }
 
-logger.info(`Loading database at ${DB_PATH}`);
-
-export const db = new Database(DB_PATH);
+logger.info(`Loading database at ${DB_PATH}`);
+
+// Ensure parent directory exists (avoid better-sqlite3 directory error)
+try {
+  const dir = dirname(DB_PATH);
+  // Skip if dir is current directory or drive root-like (e.g., "C:")
+  const isTrivialDir = dir === '.' || dir === '' || /^[A-Za-z]:\\?$/.test(dir);
+  if (!isTrivialDir && !existsSync(dir)) {
+    mkdirSync(dir, { recursive: true });
+  }
+} catch (e) {
+  logger.warn(`Failed to ensure DB directory exists: ${e}`);
+}
+
+export const db = new Database(DB_PATH);
 
 
 
 
 
 initializeDB();
-migrate();
+migrate();