fc-ttsreader: piper memory 1Gi -> 3Gi to stop OOMKill mid-render

apps/fc-ttsreader/fc-ttsreader.yaml

@@ -97,13 +97,19 @@ spec:
           ports:
             - containerPort: 10200
               name: wyoming
+          # Memory bumped after observed OOMKills during real chapter
+          # renders 2026-04-25. Piper's eSpeak phonemizer + onnx runtime
+          # spikes well past 1 Gi on long unpunctuated paragraphs from
+          # PDF / book imports. 3 Gi gives headroom plus the
+          # transcribe-audio-to-Quick-Read flow that hits Piper through
+          # the same model.
           resources:
             requests:
               cpu: 250m
-              memory: 256Mi
+              memory: 512Mi
             limits:
-              cpu: 1000m
-              memory: 1Gi
+              cpu: 2000m
+              memory: 3Gi
           volumeMounts:
             - name: data
               mountPath: /data