Production todo-md scan: sweep hostname + deploy tag main-d8808bf

Use STATE_HUB_SWEEP_HOSTNAME in doi_engine path resolution so
/repos/todo-md-staleness works on railiance01 with mounted /home/tegwick.

api/doi_engine.py

@@ -8,6 +8,7 @@ from __future__ import annotations
 
 import asyncio
 import json
+import os
 import re
 import socket
 import urllib.error
@@ -242,8 +243,13 @@ def compute_fingerprint(
     return "|".join(parts)
 
 
+def _sweep_hostname() -> str:
+    """Hostname for host_paths resolution; override when pod hostname != fleet FQDN."""
+    return os.environ.get("STATE_HUB_SWEEP_HOSTNAME", "").strip() or socket.gethostname()
+
+
 def _resolve_path(repo: dict) -> str:
-    hostname = socket.gethostname()
+    hostname = _sweep_hostname()
     host_paths = repo.get("host_paths") or {}
     candidates = []
     if host_paths.get(hostname):

deploy/railiance/apps/helm/state-hub-values.yaml

@@ -6,7 +6,7 @@ namespace:
 
 image:
   repository: forgejo.coulomb.social/coulomb/state-hub
-  tag: "main-0ca9c27"
+  tag: "main-d8808bf"
 
 ingress:
   enabled: false