feat: añadir DATA_DIR para DB compartida y configurar Bun workspaces

Co-authored-by: aider (openrouter/openai/gpt-5) <aider@aider.chat>

DEVTASKS_STAGE0_COMMANDS.txt

@@ -0,0 +1,3 @@
+bun install
+bun create svelte@latest apps/web
+cd apps/web && bun add -d @sveltejs/adapter-node

README.md

@@ -73,6 +73,7 @@ Variables clave:
 - METRICS_ENABLED, PORT.
 - Rate limit: RATE_LIMIT_PER_MIN, RATE_LIMIT_BURST.
 - Intervalos y retención: GROUP_SYNC_INTERVAL_MS, GROUP_MEMBERS_SYNC_INTERVAL_MS, GROUP_MEMBERS_INACTIVE_RETENTION_DAYS.
+- DATA_DIR: directorio raíz para la base de datos SQLite compartida (por defecto ./data).
 
 Consulta:
 - docs/operations.md para operación, endpoints y variables de entorno.

bunfig.toml

@@ -0,0 +1 @@
+workspaces = ["apps/*"]

docs/operations.md

@@ -20,6 +20,7 @@ Variables de entorno (principales)
 - ADMIN_USERS: lista separada por comas de IDs/JIDs autorizados para /admin (se normalizan a dígitos). Ej.: ADMIN_USERS='34600123456, 5554443333, +34 600 111 222'
 - ALLOWED_GROUPS: lista separada por comas de group_id@g.us para sembrado inicial en arranque. Ej.: ALLOWED_GROUPS='12345-67890@g.us, 11111-22222@g.us'
 - NOTIFY_ADMINS_ON_DISCOVERY: 'true'/'false' para avisar por DM a ADMIN_USERS al descubrir un grupo (modo 'discover'). Ej.: NOTIFY_ADMINS_ON_DISCOVERY='true'
+- DATA_DIR: directorio base para la base de datos SQLite (por defecto ./data).
 
 Endpoints operativos
 - GET /metrics

src/db.ts

@@ -1,7 +1,7 @@
 import { Database } from 'bun:sqlite';
 import { normalizeWhatsAppId } from './utils/whatsapp';
 import { mkdirSync } from 'fs';
-import { join } from 'path';
+import { join, resolve } from 'path';
 import { Migrator } from './db/migrator';
 
 function applyDefaultPragmas(instance: Database): void {
@@ -18,15 +18,20 @@ function applyDefaultPragmas(instance: Database): void {
   }
 }
 
-// Function to get a database instance. Defaults to 'data/tasks.db'
+ // Function to get a database instance. Defaults to 'data/tasks.db'
 export function getDb(filename: string = 'tasks.db'): Database {
+  // Determine base directory for the database (env DATA_DIR or default './data'), resolve to absolute
+  const dataDir = process?.env?.DATA_DIR ? String(process.env.DATA_DIR) : 'data';
+  const dirPath = resolve(dataDir);
+
   // Try to create data directory if it doesn't exist (ignore if already exists)
   try {
-    mkdirSync('data', { recursive: true });
+    mkdirSync(dirPath, { recursive: true });
   } catch (err) {
-    if (err.code !== 'EEXIST') throw err; // Only ignore "already exists" errors
+    if ((err as any)?.code !== 'EEXIST') throw err; // Only ignore "already exists" errors
   }
-  const instance = new Database(join('data', filename));
+
+  const instance = new Database(join(dirPath, filename));
   applyDefaultPragmas(instance);
   return instance;
 }