v0.6.0 - Service-level connectivity tracking + passive failure-report endpoint

connectivity.py:
- Generalized 'spark' subject to any string; renamed 'spark' field to 'subject'
- Legacy v0.5 events with the old 'spark' field are migrated transparently on read (kind defaults to 'transition')
- New record_report(subject, ok, source, detail, latency_ms): always appends an event with kind='report'; does NOT mutate the current state (only active polling is authoritative)
- summary() returns events normalized to the new schema

Wiring:
- /api/status now calls record_state for vllm/parakeet/magpie (dedup on no-change)
- /api/services calls record_state for each service after its http check
- Result: dashboard observes service-level transitions automatically with no extra polling

Passive endpoint:
- POST /api/health-event with {service, ok, source?, error?, ms?}
- Useful for external apps (e.g. Open WebUI) to surface sub-poll-interval failures the dashboard would otherwise miss

UI:
- Connectivity dialog groups events by subject (hosts ordered first, then services)
- Per-subject summary shows transition count, down count, report count, failed-report count
- Transitions and reports render inline with distinct styling; reports show source app + error + latency
- Legacy v0.5 events render unchanged

Docs:
- README documents /api/health-event with a curl example

Package: bump to 0.6.0:0

image/app/server.py

@@ -10,7 +10,7 @@ from pydantic import BaseModel
 from typing import Literal
 
 from .config import Settings
-from .connectivity import get_mac, summary as connectivity_summary
+from .connectivity import get_mac, record_report, record_state, summary as connectivity_summary
 from .custom_services import add_custom_service, delete_custom_service
 from .download import DownloadManager
 from .hardware import HardwareProbe
@@ -136,6 +136,37 @@ async def get_connectivity() -> dict:
     return connectivity_summary()
 
 
+class HealthEventBody(BaseModel):
+    service: str                 # e.g. "parakeet", "magpie", "vllm"
+    ok: bool                     # true on success, false on failure
+    source: str | None = None    # what app reported (e.g. "open-webui")
+    error: str | None = None     # optional detail
+    ms: int | None = None        # optional latency
+
+
+@app.post("/api/health-event")
+async def post_health_event(body: HealthEventBody) -> dict:
+    """Passive endpoint: any LAN app can POST here when its call to one of our
+    services succeeds or (more usefully) fails. We log the report into the
+    connectivity history so a brief blip that polling misses still surfaces.
+
+    Example:
+        curl -X POST http://<dashboard>/api/health-event \\
+          -H 'content-type: application/json' \\
+          -d '{"service":"parakeet","ok":false,"error":"503","source":"open-webui","ms":420}'
+    """
+    if not body.service.strip():
+        raise HTTPException(400, "service is required")
+    event = record_report(
+        body.service.strip(),
+        ok=body.ok,
+        source=(body.source or "external").strip(),
+        detail=(body.error or "").strip(),
+        latency_ms=body.ms,
+    )
+    return {"ok": True, "recorded": event}
+
+
 @app.post("/api/spark/{name}/wake")
 async def wake_spark(name: str) -> dict:
     """Send a Wake-on-LAN magic packet for the named Spark.
@@ -216,6 +247,8 @@ async def get_services() -> dict:
     results = await asyncio.gather(*[one(n) for n in services.keys()])
     for name, info in results:
         out[name] = info
+        # Feed http reachability into the connectivity log (transition-only)
+        record_state(name, bool(info.get("http_ready")))
     return out
 
 
@@ -372,6 +405,10 @@ async def get_status() -> dict:
         check_parakeet(settings),
         check_magpie(settings),
     )
+    # Feed health into the connectivity log (deduped — only logs on transition)
+    record_state("vllm", bool(vllm.get("ok")))
+    record_state("parakeet", bool(parakeet.get("ok")))
+    record_state("magpie", bool(magpie.get("ok")))
     current_key = _identify_current_model(vllm.get("current_model"))
     return {
         "configured": settings.configured,