fix: honor chart analytics timeout

backend/src/db/index.ts

@@ -1,6 +1,9 @@
 import pg from 'pg';
 import fs from 'node:fs';
-import { databaseConfig } from '../platform/config/database.js';
+import {
+  analyticsStatementTimeoutMs,
+  databaseConfig,
+} from '../platform/config/database.js';
 import { resolveDbAssetPath } from './assets.js';
 import { runMigrations } from './migrations.js';
 import { UKMESH_NETWORKS } from '../networks.js';
@@ -58,8 +61,8 @@ const analyticsPool = new Pool({
   max: 2,
   idleTimeoutMillis: databaseConfig.idleTimeoutMs,
   connectionTimeoutMillis: databaseConfig.connectionTimeoutMs,
-  statement_timeout: 300_000, // 5 minutes — analytics queries are intentionally slow
-  query_timeout: 300_000,
+  statement_timeout: analyticsStatementTimeoutMs(databaseConfig.statementTimeoutMs),
+  query_timeout: analyticsStatementTimeoutMs(databaseConfig.statementTimeoutMs),
 });
 
 analyticsPool.on('error', (err) => {

backend/src/platform/config/database.test.ts

@@ -1,7 +1,7 @@
 import assert from 'node:assert/strict';
 import test from 'node:test';
 import { boundedIntegerSetting } from './boundedNumber.js';
-import { loadDatabaseConfig } from './database.js';
+import { analyticsStatementTimeoutMs, loadDatabaseConfig } from './database.js';
 
 test('database numeric settings use bounded deployment-safe defaults', () => {
   assert.deepEqual(loadDatabaseConfig({}), {
@@ -48,3 +48,9 @@ test('database configuration rejects invalid pool, timeout, and schema settings
     /Invalid DATABASE_SCHEMA/,
   );
 });
+
+test('analytics queries honor a longer configured timeout while retaining a safe floor', () => {
+  assert.equal(analyticsStatementTimeoutMs(30_000), 300_000);
+  assert.equal(analyticsStatementTimeoutMs(900_000), 900_000);
+  assert.equal(analyticsStatementTimeoutMs(0), 0);
+});

backend/src/platform/config/database.ts

@@ -37,4 +37,8 @@ export function loadDatabaseConfig(env: NodeJS.ProcessEnv) {
   } as const;
 }
 
+export function analyticsStatementTimeoutMs(configuredTimeoutMs: number): number {
+  return configuredTimeoutMs === 0 ? 0 : Math.max(300_000, configuredTimeoutMs);
+}
+
 export const databaseConfig = loadDatabaseConfig(process.env);