chore(hardware): 48v mobo routing review pass

KiCad working-session save on BMU_v2_48v.kicad_pcb: track
cleanup/rework across SDA/SCL/+3.3V, ALERT and BATT_SW nets plus
the LM5164 buck corner (434 insertions / 458 deletions, no
component moves). Board reviewed in KiCad after the scripted
buck-corner routing.

hardware/pcb-bmu-v2/BMU-v2-48v/BMU_v2_48v.kicad_prl

@@ -67,9 +67,48 @@
     "version": 5
   },
   "net_inspector_panel": {
-    "col_hidden": [],
-    "col_order": [],
-    "col_widths": [],
+    "col_hidden": [
+      false,
+      false,
+      false,
+      false,
+      false,
+      false,
+      false,
+      false,
+      false,
+      false,
+      false,
+      false
+    ],
+    "col_order": [
+      0,
+      1,
+      2,
+      3,
+      4,
+      5,
+      6,
+      7,
+      8,
+      9,
+      10,
+      11
+    ],
+    "col_widths": [
+      156,
+      141,
+      107,
+      105,
+      108,
+      140,
+      105,
+      109,
+      103,
+      103,
+      103,
+      103
+    ],
     "custom_group_rules": [],
     "expanded_rows": [],
     "filter_by_net_name": true,
@@ -81,7 +120,7 @@
     "show_unconnected_nets": false,
     "show_zero_pad_nets": false,
     "sort_ascending": true,
-    "sorting_column": -1
+    "sorting_column": 0
   },
   "open_jobsets": [],
   "project": {