From 8d0fb8e157aed66e89c592d23667d2a2028fbd89 Mon Sep 17 00:00:00 2001
From: Paul Nothaft <paul@MacStudio-von-Paul.local>
Date: Mon, 27 Apr 2026 15:30:03 +0200
Subject: [PATCH] chore: expose pid + uptime on /health for crash-detection
 monitors
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Adds `pid` and `uptime` fields to the /health response so external monitors
(and the local E2E watchdog) can detect a silent process restart between
two checks — e.g. an unhandled rejection that crashes Node and Docker
quietly relaunches the container.

Also adds .gitignore patterns for a local-only E2E suite that lives in
tests/e2e/local/ on individual machines and is never pushed.
---
 .gitignore        |  6 ++++++
 backend/server.js | 13 ++++++++-----
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/.gitignore b/.gitignore
index 931739a7..a49a1d81 100644
--- a/.gitignore
+++ b/.gitignore
@@ -100,6 +100,12 @@ backup/
 # Local artifacts from browser tooling
 .playwright-mcp/
 
+# Local-only E2E suite (never pushed; runs as pre-push gate on this machine)
+tests/e2e/local/
+playwright-local-results/
+e2e-test.log
+scripts/e2e-local.sh
+
 # Local SQLite files in backend
 backend/*.sqlite*
 backend/*.db
diff --git a/backend/server.js b/backend/server.js
index 5bd6f1b4..ba62cc4a 100644
--- a/backend/server.js
+++ b/backend/server.js
@@ -486,21 +486,24 @@ app.get('/robots.txt', async (req, res) => {
   }
 });
 
-// Health check endpoint
+// Health check endpoint. `pid` + `uptime` let monitors (and the local E2E
+// watchdog) detect a silent process restart between two checks.
 app.get('/health', async (req, res) => {
   try {
-    // Check database connectivity
     await db.raw('SELECT 1');
-
     res.json({
       status: 'ok',
-      timestamp: new Date().toISOString()
+      timestamp: new Date().toISOString(),
+      pid: process.pid,
+      uptime: process.uptime()
     });
   } catch (error) {
     logger.error('Health check failed:', error);
     res.status(503).json({
       status: 'error',
-      timestamp: new Date().toISOString()
+      timestamp: new Date().toISOString(),
+      pid: process.pid,
+      uptime: process.uptime()
     });
   }
 });