feat: drop stack labels and network topology to Community tier (#995)

* feat(labels): drop tier gate to Community for organization endpoints

Stack Labels CRUD and per-stack assignment are now Community-tier features:
list, create, update, delete labels, and assign labels to a single stack.

The two automation surfaces stay Skipper+: per-label bulk deploy / stop /
restart (POST /api/labels/:id/action) and the Fleet Actions tab's
bulk-assign card (POST /api/fleet-actions/labels/bulk-assign). Tier story
is now organize free, automate paid.

Add a route-level test that proves the CRUD endpoints succeed on a Community
license while the bulk-action endpoint still returns 403. Update overview,
licensing, and stack-labels docs to reflect the new tier placement and to
note that bulk actions on a label still require Skipper or Admiral.

* feat(topology): drop tier gate to Community for network topology view

The Resources tab's Networks > Topology view is now available on every tier.
Drops requirePaid from GET /api/system/networks/topology, removes the
isPaid wrapper around the List | Topology toggle in ResourcesView, and
removes the PaidGate around the topology graph.

CapabilityGate stays in place so a node running on a build without the
network-topology capability still renders its lock card instead of the
graph. Add a route-level test that proves the endpoint returns 200 on a
Community license. Update licensing and resources docs to reflect the new
tier placement.

* fix(labels): expose Settings > Labels tab on Community tier

The settings registry entry for the Labels tab still carried tier:
'skipper', which kept the tab hidden in the Settings sidebar even though
the underlying CRUD endpoints now serve Community. Drop the tier flag so
Community users can discover and reach the section that backs the
already-Community-tier label endpoints.

docs/features/resources.mdx

@@ -126,7 +126,7 @@ Lists all Docker networks with ID, name, driver, scope (`local`, `global`, `swar
 
 **Filter chips:** `All`, `Managed`, `External`, each with its count.
 
-A **List | Topology** view-mode toggle sits on the right of the toolbar. **List** is the default tabular view; **Topology** is a paid-tier graph view of how containers connect to networks (covered below).
+A **List | Topology** view-mode toggle sits on the right of the toolbar. **List** is the default tabular view; **Topology** is a graph view of how containers connect to networks (covered below).
 
 #### Create Network
 
@@ -163,7 +163,7 @@ The sheet is grouped into sections:
 - **Connected** shows every container attached to the network, with its name, IPv4 address, and MAC address. The section header counts the containers.
 - **Labels** lists all Docker labels on the network (rendered only when present).
 
-#### Network topology <span style={{fontSize: '0.75em', color: 'var(--brand)'}}>Skipper</span>
+#### Network topology
 
 Switch to the **Topology** view to see an interactive graph of your Docker networks and the containers attached to them. The graph uses an automatic hierarchical layout (networks on top, containers below) that scales cleanly regardless of how many networks and containers you have.
 
@@ -187,10 +187,6 @@ By default, system networks (`bridge`, `host`, `none`) are hidden so the graph s
   <img src="/images/networks/network-topology-toggle.png" alt="Topology with Show system networks toggled on; arr-net plus the bridge, none, and host system networks all visible at the top" />
 </Frame>
 
-<Note>
-  Network Topology requires a Skipper or Admiral license. On Community, the Topology toggle shows an upgrade prompt instead of the graph.
-</Note>
-
 ### Unmanaged
 
 <Frame>