feat: show runtime diagnostics in management summary

src/cold_display_guard/manage_api.py

@@ -65,6 +65,11 @@ def create_handler(ctx: ManageContext) -> type[BaseHTTPRequestHandler]:
                 limit = bounded_int(query.get("limit", ["200"])[0], 1, MAX_EVENT_LINES)
                 self._send_json({"items": load_events(ctx, limit), "limit": limit})
                 return
+            if parsed.path == "/api/manage/diagnostics":
+                query = parse_qs(parsed.query)
+                limit = bounded_int(query.get("limit", ["50"])[0], 1, MAX_EVENT_LINES)
+                self._send_json({"items": load_diagnostics(ctx, limit), "limit": limit})
+                return
             self.send_error(HTTPStatus.NOT_FOUND)
 
         def do_PUT(self) -> None:
@@ -234,6 +239,7 @@ def config_payload(ctx: ManageContext) -> dict[str, Any]:
 
 def build_summary(ctx: ManageContext) -> dict[str, Any]:
     events = load_events(ctx, MAX_EVENT_LINES)
+    diagnostics = load_diagnostics(ctx, MAX_EVENT_LINES)
     counts: dict[str, int] = {}
     last_event_time = ""
     latest_alert = ""
@@ -261,22 +267,35 @@ def build_summary(ctx: ManageContext) -> dict[str, Any]:
             "violation_count": active_alert_count,
             "latest_alert_time": latest_alert,
             "events_path": str(event_sink_path(ctx)),
+            "diagnostics_path": str(diagnostics_path(ctx)),
+            "diagnostics_count": len(diagnostics),
+            "latest_zone_counts": latest_zone_counts(diagnostics),
+            "baseline_ready": latest_baseline_ready(diagnostics),
         },
     }
 
 
 def load_events(ctx: ManageContext, limit: int) -> list[dict[str, Any]]:
     path = event_sink_path(ctx)
+    return load_jsonl_tail(path, limit)
+
+
+def load_diagnostics(ctx: ManageContext, limit: int) -> list[dict[str, Any]]:
+    path = diagnostics_path(ctx)
+    return load_jsonl_tail(path, limit)
+
+
+def load_jsonl_tail(path: Path, limit: int) -> list[dict[str, Any]]:
     lines = tail_lines(path, limit)
-    events: list[dict[str, Any]] = []
+    items: list[dict[str, Any]] = []
     for line in lines:
         try:
             payload = json.loads(line)
         except json.JSONDecodeError:
             continue
         if isinstance(payload, dict):
-            events.append(payload)
-    return events
+            items.append(payload)
+    return items
 
 
 def event_sink_path(ctx: ManageContext, data: dict[str, Any] | None = None) -> Path:
@@ -289,6 +308,32 @@ def event_sink_path(ctx: ManageContext, data: dict[str, Any] | None = None) -> P
     return path.resolve()
 
 
+def diagnostics_path(ctx: ManageContext, data: dict[str, Any] | None = None) -> Path:
+    if data is None:
+        data = load_config_document(ctx.config_path)
+    raw_path = str(data.get("runtime", {}).get("diagnostics_path", "logs/runtime_diagnostics.jsonl"))
+    path = Path(raw_path).expanduser()
+    if not path.is_absolute():
+        path = ctx.project_root / path
+    return path.resolve()
+
+
+def latest_zone_counts(diagnostics: list[dict[str, Any]]) -> dict[str, int]:
+    for item in reversed(diagnostics):
+        zone_counts = item.get("zone_counts")
+        if isinstance(zone_counts, dict):
+            return {str(key): int(value) for key, value in zone_counts.items()}
+    return {}
+
+
+def latest_baseline_ready(diagnostics: list[dict[str, Any]]) -> bool:
+    for item in reversed(diagnostics):
+        diagnostics_payload = item.get("diagnostics")
+        if isinstance(diagnostics_payload, dict):
+            return bool(diagnostics_payload.get("baseline_ready", False))
+    return False
+
+
 def tail_lines(path: Path, limit: int) -> list[str]:
     if not path.exists():
         return []

tests/test_manage_api.py

@@ -77,6 +77,37 @@ class ManageApiTests(unittest.TestCase):
         self.assertEqual(summary["metrics"]["event_count"], 2)
         self.assertEqual(summary["metrics"]["violation_count"], 1)
 
+    def test_summary_reads_runtime_diagnostics(self) -> None:
+        with tempfile.TemporaryDirectory() as tmpdir:
+            root = Path(tmpdir)
+            config_path = root / "config" / "local.toml"
+            save_config_document(
+                config_path,
+                {
+                    "runtime": {"diagnostics_path": "logs/runtime_diagnostics.jsonl"},
+                    "event_sink": {"path": "logs/events.jsonl"},
+                    "layout": {"rows": 1, "cols": 1, "zone_ids": ["r1c1"]},
+                },
+            )
+            diagnostics_path = root / "logs" / "runtime_diagnostics.jsonl"
+            diagnostics_path.parent.mkdir()
+            diagnostics_path.write_text(
+                json.dumps(
+                    {
+                        "ts": "2026-04-28T10:00:00+08:00",
+                        "zone_counts": {"r1c1": 1},
+                        "diagnostics": {"baseline_ready": True},
+                    }
+                ),
+                encoding="utf-8",
+            )
+
+            summary = build_summary(ManageContext(config_path=config_path, project_root=root))
+
+        self.assertEqual(summary["metrics"]["diagnostics_count"], 1)
+        self.assertEqual(summary["metrics"]["latest_zone_counts"], {"r1c1": 1})
+        self.assertTrue(summary["metrics"]["baseline_ready"])
+
 
 if __name__ == "__main__":
     unittest.main()

web/src/main.js

@@ -484,10 +484,18 @@ function renderMetrics() {
   const cards = [
     ["事件总数", metrics.event_count ?? 0],
     ["违规事件", metrics.violation_count ?? 0],
+    ["诊断帧数", metrics.diagnostics_count ?? 0],
+    ["基线状态", metrics.baseline_ready ? "ready" : "learning"],
     ["最新报警", metrics.latest_alert_time || "-"],
     ["事件文件", metrics.events_path || "-"],
   ];
-  els.metrics.innerHTML = cards.map(([label, value]) => `<div class="metric"><span>${label}</span><strong>${value}</strong></div>`).join("");
+  const zoneCounts = metrics.latest_zone_counts || {};
+  const zoneSummary = Object.keys(zoneCounts).length
+    ? `<div class="metric wide"><span>最新区域状态</span><strong>${Object.entries(zoneCounts)
+        .map(([zoneId, count]) => `${zoneId}:${count}`)
+        .join(" ")}</strong></div>`
+    : "";
+  els.metrics.innerHTML = cards.map(([label, value]) => `<div class="metric"><span>${label}</span><strong>${value}</strong></div>`).join("") + zoneSummary;
 }
 
 function renderEvents() {

web/src/styles.css

@@ -226,6 +226,10 @@ canvas {
   font-size: 18px;
 }
 
+.metric.wide {
+  grid-column: 1 / -1;
+}
+
 .events-table {
   overflow: auto;
 }