docs(hardware): record DDR4-2666 RAM type for mf01/mf02, fix mf00 status

Add ram_type (DDR4-2666 non-ECC UDIMM) to mf01 and mf02 frontmatter, and
set mf00's placeholder status to staging so the overview index regenerates.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docs/hardware/mf00.md

@@ -1,7 +1,7 @@
 ---
 hostname: mf00
 kind: server
-status: definitely-not-a-valid-status
+status: staging
 location: The pile
 cpu: "?"
 cpu_cores: "?"

docs/hardware/mf01.md

@@ -7,6 +7,7 @@ cpu: Intel Core i5-8500 @ 3.00GHz
 cpu_cores: 6
 cpu_threads: 6
 ram_gb: 8
+ram_type: DDR4-2666 non-ECC UDIMM
 storage_gb: 40
 storage_type: nvme
 nic_gbps: 1

docs/hardware/mf02.md

@@ -7,6 +7,7 @@ cpu: Intel Core i5-8500 @ 3.00GHz
 cpu_cores: 6
 cpu_threads: 6
 ram_gb: 16
+ram_type: DDR4-2666 non-ECC UDIMM
 storage_gb: 40
 storage_type: nvme
 nic_gbps: 1