fix(homepage): pin UltraSeedbox to one tab, dedupe Uptime Kuma, size columns to members

UltraSeedbox had no layout: entry, and Homepage renders an untabbed group on
every tab — eight full-width bookmark bars repeated four times. Pinned to Main
with a row layout.

Uptime Kuma rendered twice: a manual services.yaml block under Monitoring plus
homepage.group=Apps on the container. Dropped the manual block, moved the
label to Monitoring, added homepage.siteMonitor. Adopted the previously
unmanaged uptimekuma stack into stacks/ so the label is version-controlled.

Column counts declared more columns than groups had members, leaving the last
row of several groups mostly empty. Columns now track member counts.

Also records an UNRESOLVED regression: since the container was recreated the
client render has lost its tab bar, wallpaper and i18n. Ruled out the config
changes (committed pre-cleanup config reproduces it) and v2.0.0 (v1.13.2
reproduces it). Server HTML still carries the tab markup, so the loss is
client-side. Details in the stack README.

stacks/homepage/conf/services.yaml

@@ -7,15 +7,17 @@
 # their own groups through the providers in docker.yaml, so most app
 # entries don't need to appear here.
 
-- Monitoring:
-  # Beszel, Dozzle, Backrest arrive here via Docker label auto-discovery
-  # (homepage.group=Monitoring on their compose files). Do not re-add them
-  # manually — they'll double up in the UI.
-  - Uptime Kuma:
-      href: http://10.0.50.45:3001
-      icon: mdi-check-network
-      siteMonitor: http://10.0.50.45:3001
-      description: Uptime monitor (esh-docker-vm)
+# The Monitoring group is fully Docker-auto-discovered — Beszel, Dozzle,
+# Backrest and Uptime Kuma all carry homepage.group=Monitoring on their
+# compose files. There is deliberately no manual block here.
+#
+# Uptime Kuma used to be listed manually here AND labelled
+# homepage.group=Apps on its container, so it rendered twice — once in
+# Monitoring without its widget, once in Apps with it. Fixed 2026-08-18 by
+# deleting the manual entry and moving the container's label to Monitoring
+# (stacks/uptimekuma/). This is the exact failure the warning below
+# describes; it survived the 2026-08-17 audit because a duplicate reads as
+# two plausible cards rather than as an error.
 
 - Apps:
   # Manual entry — the Booth is a user-level systemd service on nh3-dev

stacks/homepage/conf/settings.yaml

@@ -44,19 +44,30 @@ useEqualHeights: true
 #   AI - Image & Media    image/video generation + pipelines
 #   AI - Dormant          stopped stacks (rollback seats, retired auditions)
 #
-# Row counts target ~4-per-row so dense groups (Apps, Service Networking)
-# read as a grid instead of an endless column.
+# COLUMN COUNTS ARE NOT A STYLE CHOICE — they are the member count.
+# `columns: N` lays the group out N-per-row and leaves the remainder of the
+# last row as dead space. A 1-member group at columns:4 renders one card and
+# three empty cells, which is what made this dashboard look ragged before
+# 2026-08-18. Rule: set columns to the member count, or to the divisor that
+# leaves the smallest remainder. Re-check when a group gains or loses a
+# service — `GET /api/services` prints the live per-group counts.
+#
+# EVERY GROUP NEEDS A `tab:` — including bookmark groups. A group with no tab
+# assignment renders on ALL FOUR TABS. That is how UltraSeedbox ended up
+# repeated at the bottom of every tab (fixed 2026-08-18); it is Homepage
+# behaviour, not a bug, and it will happen again to the next group added
+# without a tab.
 layout:
   Notes:
     icon: mdi-note-text-outline
     tab: Main
     style: row
-    columns: 4
+    columns: 1
   News:
     icon: mdi-rss
     tab: Main
     style: row
-    columns: 4
+    columns: 2
   Monitoring:
     icon: mdi-chart-line
     tab: Main
@@ -67,14 +78,27 @@ layout:
     tab: Main
     style: row
     columns: 4
+  # 2 wide, not 3 — Plex and Jellyfin carry stat-block widgets that get
+  # squeezed to unreadable at 4-across, and 4 members / 3 columns orphaned
+  # Jellyfin onto a row of its own.
   Media:
     icon: mdi-play-box-multiple
     tab: Main
     style: row
-    columns: 3
+    columns: 2
   Games:
     icon: mdi-gamepad-square
     tab: Main
+    style: row
+    columns: 1
+  # Bookmarks. Listed here for the tab pin above all else — without it this
+  # group appears on every tab. `style: row` also turns the eight entries
+  # from full-width stacked bars into a compact grid.
+  UltraSeedbox:
+    icon: mdi-download-network
+    tab: Main
+    style: row
+    columns: 4
   # --- AI tab: the inference fleet, ordered core-models -> support -> apps ---
   AI - Inference:
     icon: mdi-brain
@@ -90,12 +114,12 @@ layout:
     icon: mdi-router-network
     tab: AI
     style: row
-    columns: 3
+    columns: 4
   AI - Speech (TTS):
     icon: mdi-account-voice
     tab: AI
     style: row
-    columns: 3
+    columns: 4
   AI - Audio Tools:
     icon: mdi-waveform
     tab: AI
@@ -123,12 +147,12 @@ layout:
     icon: si-proxmox
     tab: Infrastructure
     style: row
-    columns: 4
+    columns: 3
   Infra - IRV:
     icon: mdi-brain
     tab: Infrastructure
     style: row
-    columns: 4
+    columns: 2
   Infra - ESH:
     icon: si-proxmox
     tab: Infrastructure