Evita 500 senza SMTP e chiude gli incidenti overflow stale.

Reset password e mail replay usano deliver_mail; il health check overflow risolve tutte le fingerprint del kind, non solo quella sana.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/spec/services/ops/health_checks_spec.rb

@@ -40,6 +40,44 @@ RSpec.describe Ops::HealthChecks do
 
       expect(Ops::Incident.find_by(fingerprint: "disk_space:root").status).to eq("resolved")
     end
+
+    it "chiude gli incidenti overflow anche se la fingerprint sana è diversa" do
+      Ops::Incident.create!(
+        kind: "stream_overflow",
+        severity: "warning",
+        status: "open",
+        title: "Capacità stream al massimo",
+        message: "overflow=3/3",
+        metadata: {},
+        fingerprint: "stream_overflow:at_max",
+        occurrence_count: 1,
+        first_seen_at: Time.current,
+        last_seen_at: Time.current
+      )
+
+      allow_any_instance_of(described_class).to receive(:check_stream_overflow).and_return(
+        described_class::Finding.new(
+          kind: "stream_overflow", severity: "info", healthy: true,
+          title: "Overflow streaming OK", message: "OK", metadata: {}, fingerprint: "stream_overflow:ok"
+        )
+      )
+      %i[
+        check_disk_root check_recordings_size check_postgres check_redis check_mediamtx check_garage
+        check_sidekiq_heartbeat check_sidekiq_dead check_http_rails check_rails_latency
+      ].each do |method|
+        allow_any_instance_of(described_class).to receive(method).and_return(
+          described_class::Finding.new(
+            kind: "test", severity: "info", healthy: true,
+            title: "OK", message: "OK", metadata: {}, fingerprint: "#{method}:ok"
+          )
+        )
+      end
+      allow_any_instance_of(described_class).to receive(:public_check_due?).and_return(false)
+
+      described_class.new.call
+
+      expect(Ops::Incident.find_by(fingerprint: "stream_overflow:at_max").status).to eq("resolved")
+    end
   end
 
   describe "#summary" do

backend/spec/services/ops/incident_recorder_spec.rb

@@ -52,4 +52,28 @@ RSpec.describe Ops::IncidentRecorder do
       expect(incident.reload.status).to eq("resolved")
     end
   end
+
+  describe ".resolve_kind" do
+    it "chiude tutti gli incidenti aperti di quel kind" do
+      at_max = described_class.record(
+        kind: "stream_overflow",
+        severity: "warning",
+        title: "Max",
+        message: "max",
+        fingerprint: "stream_overflow:at_max"
+      )
+      orphan = described_class.record(
+        kind: "stream_overflow",
+        severity: "warning",
+        title: "Idle",
+        message: "idle",
+        fingerprint: "stream_overflow:orphan_idle"
+      )
+
+      described_class.resolve_kind("stream_overflow")
+
+      expect(at_max.reload.status).to eq("resolved")
+      expect(orphan.reload.status).to eq("resolved")
+    end
+  end
 end