Merge pull request 'chore: configure Traefik X-Request-Id header forwarding (#83)' (#89) from issue-83-traefik-request-id into main

Reviewed-on: #89

config/traefik/dynamic/middleware.yml

@@ -1,5 +1,16 @@
 http:
   middlewares:
+    # Request ID forwarding middleware
+    # Note: Traefik v3 lacks native UUID generation
+    # Backend generates X-Request-Id if not present in request
+    # This middleware ensures the header is forwarded when present
+    request-id:
+      headers:
+        customRequestHeaders:
+          X-Forwarded-Host: "{{ .Request.Host }}"
+        # X-Request-Id forwarded automatically via passthrough
+        # Backend responsibility: generate UUID if header missing
+
     # Security headers middleware
     secure-headers:
       headers:
@@ -33,6 +44,7 @@ http:
           - "Content-Type"
           - "X-Requested-With"
           - "X-Tenant-ID"
+          - "X-Request-Id"
         accessControlAllowMethods:
           - "GET"
           - "POST"

config/traefik/traefik.yml

@@ -68,6 +68,7 @@ accessLog:
         User-Agent: redact
         Authorization: drop
         Cookie: drop
+        X-Request-Id: keep
 
 # Metrics for monitoring
 metrics: