fix(agent99): compact callback incident ids

apps/api/src/services/agent99_completion_callback.py

@@ -2,6 +2,7 @@
 
 from __future__ import annotations
 
+from hashlib import sha256
 from typing import Any
 
 from sqlalchemy import text
@@ -16,6 +17,18 @@ from src.services.channel_hub import (
     record_external_alert_event,
 )
 
+_OPERATION_INCIDENT_ID_MAX_LENGTH = 30
+
+
+def _operation_incident_id(alert_id: str | None) -> str | None:
+    """Keep external alert identity while fitting the immutable event schema."""
+    if not alert_id:
+        return None
+    if len(alert_id) <= _OPERATION_INCIDENT_ID_MAX_LENGTH:
+        return alert_id
+    digest = sha256(alert_id.encode("utf-8")).hexdigest().upper()[:21]
+    return f"INC-AG99-{digest}"
+
 
 async def _load_callback_readback(
     *,
@@ -73,6 +86,7 @@ def _operation_context(payload: Agent99CompletionCallbackRequest) -> dict[str, A
         "trace_id": payload.trace_id,
         "work_item_id": payload.work_item_id,
         "alert_id": payload.alert_id,
+        "operation_incident_id": _operation_incident_id(payload.alert_id),
         "correlation_key": payload.correlation_key,
         "source": payload.source,
         "mode": payload.mode,
@@ -133,6 +147,7 @@ async def record_agent99_completion_callback(
         else "warning"
     )
     context = _operation_context(payload)
+    operation_incident_id = _operation_incident_id(payload.alert_id)
     event_id = await record_external_alert_event(
         project_id=payload.project_id,
         provider="agent99",
@@ -166,7 +181,7 @@ async def record_agent99_completion_callback(
     if int((before or {}).get("execution_count") or 0) == 0:
         await repository.append(
             "EXECUTION_COMPLETED",
-            incident_id=payload.alert_id,
+            incident_id=operation_incident_id,
             actor="agent99_completion_callback",
             action_detail=f"{payload.mode}:{payload.outcome_state}",
             success=payload.verifier_passed,
@@ -175,7 +190,7 @@ async def record_agent99_completion_callback(
     if terminal_resolved and int((before or {}).get("resolved_count") or 0) == 0:
         await repository.append(
             "RESOLVED",
-            incident_id=payload.alert_id,
+            incident_id=operation_incident_id,
             actor="agent99_completion_callback",
             action_detail=f"{payload.mode}:verified_resolved",
             success=True,