refactor(page_routes): pass datetime to templates for timeago filter

Drop the inline humanize_delta imports and string-precomputation; pass
the raw datetime as latest_job_at / latest_build_at and let the
template apply the timeago filter. One fewer code path computing
relative-time strings.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

l4d2web/l4d2web/routes/page_routes.py

@@ -237,8 +237,6 @@ _TERMINAL_JOB_STATES = {"succeeded", "failed", "cancelled"}
 
 
 def _build_server_actions_context(db, server) -> dict:
-    from l4d2web.services.timeago import humanize_delta
-
     latest_job = db.scalar(
         select(Job)
         .where(Job.server_id == server.id)
@@ -281,7 +279,7 @@ def _build_server_actions_context(db, server) -> dict:
     drift = (not has_active_job) and desired_state != actual_state
 
     latest_job_phrase: str | None = None
-    latest_job_when: str | None = None
+    latest_job_at: datetime | None = None
     latest_job_is_running = False
     if latest_job is not None:
         if latest_job.state in _TERMINAL_JOB_STATES:
@@ -291,7 +289,7 @@ def _build_server_actions_context(db, server) -> dict:
             latest_job_phrase = _OPERATION_GERUND.get(latest_job.operation, latest_job.operation)
             latest_job_is_running = True
             ref_time = latest_job.started_at or latest_job.created_at
-        latest_job_when = humanize_delta(ref_time)
+        latest_job_at = ref_time
 
     return {
         "display_state": display_state,
@@ -300,7 +298,7 @@ def _build_server_actions_context(db, server) -> dict:
         "drift": drift,
         "latest_job": latest_job,
         "latest_job_phrase": latest_job_phrase,
-        "latest_job_when": latest_job_when,
+        "latest_job_at": latest_job_at,
         "latest_job_is_running": latest_job_is_running,
     }
 
@@ -440,8 +438,6 @@ _BUILD_STATE_LABELS = {
 
 
 def _build_overlay_build_status_context(db, overlay) -> dict:
-    from l4d2web.services.timeago import humanize_delta
-
     latest_build = db.scalar(
         select(Job)
         .where(Job.operation == "build_overlay", Job.overlay_id == overlay.id)
@@ -464,7 +460,7 @@ def _build_overlay_build_status_context(db, overlay) -> dict:
         )
 
     latest_build_phrase: str | None = None
-    latest_build_when: str | None = None
+    latest_build_at: datetime | None = None
     if latest_build is not None:
         if latest_build.state in _TERMINAL_JOB_STATES:
             latest_build_phrase = f"{latest_build.operation} {latest_build.state}"
@@ -472,13 +468,13 @@ def _build_overlay_build_status_context(db, overlay) -> dict:
         else:
             latest_build_phrase = "building"
             ref_time = latest_build.started_at or latest_build.created_at
-        latest_build_when = humanize_delta(ref_time)
+        latest_build_at = ref_time
 
     return {
         "latest_build": latest_build,
         "latest_build_is_running": is_running,
         "latest_build_phrase": latest_build_phrase,
-        "latest_build_when": latest_build_when,
+        "latest_build_at": latest_build_at,
         "build_state_label": build_state_label,
         "build_state_class": build_state_class,
     }

l4d2web/l4d2web/templates/_overlay_build_status.html

@@ -8,7 +8,7 @@
   <p class="last-job">
     <a href="/jobs/{{ latest_build.id }}">{{ latest_build_phrase }}</a>
     {% if latest_build_is_running %}since{% endif %}
-    {{ latest_build_when }}
+    {{ latest_build_at | timeago }}
     (<a href="/overlays/{{ overlay.id }}/jobs">show all</a>)
   </p>
   {% endif %}

l4d2web/l4d2web/templates/_server_actions.html

@@ -26,7 +26,7 @@
   <p class="last-job">
     <a href="/jobs/{{ latest_job.id }}">{{ latest_job_phrase }}</a>
     {% if latest_job_is_running %}since{% endif %}
-    {{ latest_job_when }}
+    {{ latest_job_at | timeago }}
     (<a href="/servers/{{ server.id }}/jobs">show all</a>)
   </p>
   {% endif %}