mini-brainstorm 결과 3개 결정:
- Q1=A polling 주기 60s
- Q2=A 절대 중단 안 함
- Q3=A constant (no backoff)

HealthChecker.start/stop + delta-only onUpdate + 3 telemetry events
(ollama_unreachable / ollama_recovered / ollama_recheck_manual)
+ main → renderer push (ollama:status) + manual recheck (banner + tray).

T1-T7 작업 순서 + 단위 ≥ 12개.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

@@ -128,6 +143,7 @@ app.whenReady().then(async () => {
 
   let backupOnQuitDone = false;
   app.on('before-quit', (e) => {

@@ -3,2 +15,4 @@
+const DEFAULT_INTERVAL_MS = 60_000;
+
 export class HealthChecker {
   private last: HealthResult = { ok: true };

@@ -10,0 +30,4 @@
+  }
+
+  async runOnce(opts?: { manual?: boolean }): Promise<HealthResult> {
+    if (opts?.manual === true) {

@@ -10,0 +56,4 @@
+
+  start(): void {
+    if (this.timer !== null) return;
+    void this.runOnce();

@@ -30,3 +33,3 @@
     window.addEventListener('focus', onFocus);
-    return () => { unsub(); window.removeEventListener('focus', onFocus); };
+    return () => { unsubNote(); unsubOllama(); window.removeEventListener('focus', onFocus); };
   }, [loadInitial, refreshMeta, upsertNote]);

@@ -14,0 +14,4 @@
+      <div style={{ display: 'flex', alignItems: 'center', gap: 8, width: '100%' }}>
+        <span style={{ flex: 1 }}>⚠ {message}</span>
+        <button
+          onClick={() => { void recheckOllama(); }}

@@ -0,0 +83,4 @@
+      now: () => { nowCounter += 1; return nowCounter * 1000; }
+    });
+    await hc.runOnce();
+    await hc.runOnce();