infra: join ludo-mini to hubris as Homelab cluster node "strong"

Reformatted the ludo-mini workstation to Proxmox VE 9.2.3 and joined it
to hubris's existing single-node "Homelab" cluster (2 nodes, no QDevice
yet). Added a second NVMe as its own LVM-thin pool (ludo-lvm). Renamed
the wiki/inventory identity from ludo-mini to strong to match the OS/
cluster hostname, since bootstrap's client-enrollment lookup depends on
that match. Also regenerated hosts/grimmory.yaml, which was missing from
git despite being referenced by inventory.yaml.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

hosts/strong.yaml

@@ -0,0 +1,32 @@
+# Generated by mcp/build_host_files.py from inventory.yaml.
+# Do NOT edit by hand — your changes will be overwritten.
+# Source of truth: ../inventory.yaml
+name: strong
+kind: proxmox-host
+os: linux
+role: hypervisor
+lan_ip: 192.168.178.181
+mesh_globals:
+  primary: netbird
+  accepted:
+  - netbird
+  - tailscale
+ssh:
+  user: root
+notes:
+- Reformatted from Linux workstation ("ludo-mini" in this wiki, still the machine's nickname) to Proxmox
+  VE 9.2.3 on 2026-07-01. Renamed the inventory/wiki identity from ludo-mini to strong on the same day
+  so it matches the OS/cluster hostname everywhere (bootstrap looks up hosts/$(hostname).yaml, so a mismatch
+  would break enrollment).
+- "Joined hubris's \"Homelab\" cluster same day. 2-node, no QDevice tiebreaker yet \u2014 see hosts/hubris.md\
+  \ quorum note."
+- Netbird not yet installed (fresh OS wiped prior enrollment); reachable today only via the household
+  LAN / existing Fritz static route to 192.168.8.0/24. Re-enroll in mesh as a follow-up if off-LAN access
+  to this host itself (not just its future guests) is needed.
+- "First step of the planned library-SSD migration \u2014 see .hermes/plans/2026-06-03_110000-library-ssd-migration-to-ludo-mini.md\
+  \ (filename kept as-is, it's a historical planning doc). Only Phase 1 (Proxmox install + cluster join)\
+  \ is done; no physical drive move, service migration, or GPU passthrough has happened yet."
+see_also:
+- hosts/strong.md
+mcp_endpoint: https://mcp.hubris.network/mcp
+secrets_issuance_endpoint: https://secrets.hubris.network/issue