feat(hosts): a host's page stays short — Docker folds past the busiest, monitors add on their own form, agent actions under Manage (#5276, #5277, #5278)

Docker panel (#5276): problems first, then the 8 busiest running
containers by CPU; the other running and the stopped fold behind one
"+N more running · M stopped" line. Containers that are not swarm tasks
read the way the Docker page reads them: CI jobs as "CI: workflow · job",
buildx builders as "BuildKit builder · name".

Monitors card (#5277): the edit/delete icon buttons and the inline add
form are gone. Each row links to its monitor's page; "Add monitor" opens
the add form filed under this host, starting from its address, with the
host in its breadcrumbs and Cancel back to it.

Agent card (#5278): Full metrics stays in view; Update, Rotate token,
Unregister agent (was "Remove") and Re-provision sit under "Manage agent".

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

plugins/docker/service.py

@@ -115,11 +115,11 @@ def failures_24h(events, swarm_services, host_name: dict) -> list[dict]:
 def task_label(c, node_hostname: dict | None = None) -> str:
     """How a container reads to a person. A swarm task is its service and
     slot: "codex_db · 1" for a replica, "agent · node-3" for a global
-    service's task on a node. Anything else is its own name."""
+    service's task on a node. Anything else as display_name reads it."""
     from .swarm_view import _slot_key
     svc = getattr(c, "service_name", None)
     if not svc:
-        return c.name
+        return display_name(c)
     slot = _slot_key(c)
     if slot.isdigit():
         return f"{svc} · {slot}"
@@ -129,19 +129,24 @@ def task_label(c, node_hostname: dict | None = None) -> str:
 
 _CI_JOB = re.compile(
     r"^(?:GITEA|FORGEJO)-ACTIONS-TASK-\d+-WORKFLOW-(?P<workflow>.+?)-JOB-(?P<job>.+?)(?:-[0-9a-f]{16,})?$")
+# docker buildx's container driver names its node "buildx_buildkit_<builder><n>".
+_BUILDKIT = re.compile(r"^buildx_buildkit_(?P<builder>.+?)\d*$")
 
 
 def display_name(c) -> str:
     """A container's name as a list can show it in one short line (#5253): a
     swarm task by its service (the host says where it runs), a Gitea or
-    Forgejo Actions job container as "CI: <workflow> · <job>", anything else
-    by its own name."""
+    Forgejo Actions job container as "CI: <workflow> · <job>", a buildx
+    builder as "BuildKit builder · <name>", anything else by its own name."""
     svc = getattr(c, "service_name", None)
     if svc:
         return svc
     m = _CI_JOB.match(c.name or "")
     if m:
         return f"CI: {m['workflow']} · {m['job']}"
+    m = _BUILDKIT.match(c.name or "")
+    if m:
+        return f"BuildKit builder · {m['builder']}"
     return c.name