fix(WP-0004): live deployment fixes from integration test

- Dockerfile: copy alembic.ini + migrations/ so actcore-migrate works
- docker-compose.railiance.yml:
    - Temporal: add dynamicconfig volume mount + correct DYNAMIC_CONFIG_FILE_PATH
    - Temporal: healthcheck uses 'temporal operator cluster health' (not tctl)
    - NATS: add monitoring port -m 8222 for wget-based healthcheck
    - actcore-api healthcheck: use Python urllib (curl absent from slim image)
- api.py: fix /health Temporal probe — Client has no describe_namespace;
    use workflow_service.get_system_info(GetSystemInfoRequest()) instead
- Makefile: grep -Eh to suppress filename prefix when MAKEFILE_LIST has
    multiple files (.env included via -include)

All 8 services start cleanly; /health returns {"status":"ok",...} HTTP 200;
SIGTERM drains worker cleanly within grace period; make help correct.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/activity_core/api.py

@@ -34,6 +34,7 @@ from fastapi.responses import JSONResponse
 from pydantic import BaseModel
 from sqlalchemy import select, text
 from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
+from temporalio.api.workflowservice.v1 import GetSystemInfoRequest
 from temporalio.client import Client
 
 from activity_core.models import ActivityDefinition, CronTriggerConfig
@@ -289,7 +290,7 @@ async def health() -> JSONResponse:
         pass
 
     try:
-        await _get_temporal().describe_namespace(TEMPORAL_NAMESPACE)
+        await _get_temporal().workflow_service.get_system_info(GetSystemInfoRequest())
         temporal_ok = True
     except Exception:
         pass