Record Accepted PCB Placement And Fit

Align component groups, repair affected routing, and add preservation
audits.
Assign the confirmed U2 footprint and update pull-ups to 2 kΩ across
design files.
Document user acceptance, switch to an A3 worksheet, and refresh PCB
exports.

hardware/PCB/validation/pcb-routing-check.json

@@ -1,39 +1,39 @@
 {
-  "immutable_geometry_nets_pads_linkage_preserved": true,
-  "board_sha256": "94e941625b3b9fc9a08b9f2d532eb35003ea8da41d456a1c67269b9651200e05",
-  "independent_min_different_net_or_npth_clearance_mm": 0.2705441169852849,
+  "geometry_nets_pads_linkage_match_authorized_group_moves_and_values": true,
+  "board_sha256": "fa95d5747c6e455b2c5effd11d11091b1f95df015dbe73c99b14092487a034c5",
+  "independent_min_different_net_or_npth_clearance_mm": 0.2527621919573916,
   "closest_items": [
-    "U1.38:4b8eabef-8493-437d-bd02-cb9ff4afd7cd",
-    "d95f45cb-7fa4-4203-a786-0a069425e2b8"
+    "DS1.4:91a4dcef-1b36-4e3d-a15c-c4578077c27b",
+    "265214f3-776f-4707-be6e-993749f3c8a7"
   ],
   "min_copper_or_npth_edge_gap_mm": 1.9,
   "min_rf_gap_mm": 0.025000000000005684,
-  "min_via_to_other_drilled_hole_gap_mm": 0.8205441169852848,
+  "min_via_to_other_drilled_hole_gap_mm": 0.47246725698856695,
   "track_width_counts": {
-    "0.25": 451,
-    "0.5": 114
+    "0.25": 642,
+    "0.5": 296
   },
   "routed_length_mm_by_net": {
-    "/BTN_SELECT": 88.94832552628598,
-    "/GND": 141.68412246223386,
-    "/+3V3": 90.29604731966161,
-    "/RS_DCD": 43.068490178879834,
+    "/BTN_SELECT": 93.73257585313998,
+    "/GND": 167.13877028476702,
+    "/+3V3": 110.38340361450781,
+    "/RS_DCD": 43.09677445013352,
     "/RS_DSR": 55.09398706495997,
-    "/RS_RI": 67.91373841554615,
-    "/RS_DTR": 52.53487761643567,
+    "/RS_RI": 75.93696129246699,
+    "/RS_DTR": 53.18208599609399,
     "/RS_RTS": 60.056714985368814,
-    "/RS_CTS": 63.65082753507114,
+    "/RS_CTS": 81.83108365614024,
     "/RS_TX": 53.135260491559045,
-    "/RS_RX": 51.637429252872906,
-    "/RS_VALID": 72.10630197626116,
-    "/RS_OFF_N": 78.04100118378895,
-    "/BTN_PREVIOUS": 78.83370879187974,
-    "/OLED_SDA": 62.65168524184884,
-    "/OLED_SCL": 61.1779295330028,
-    "/BTN_NEXT": 101.24898628384834
+    "/RS_RX": 52.38890111544552,
+    "/RS_VALID": 73.53056575207658,
+    "/RS_OFF_N": 78.70963033389047,
+    "/BTN_PREVIOUS": 84.48232420012336,
+    "/OLED_SDA": 63.88671049501825,
+    "/OLED_SCL": 62.3836654642909,
+    "/BTN_NEXT": 106.89760169209195
   },
-  "tracks": 565,
-  "vias": 22,
+  "tracks": 938,
+  "vias": 41,
   "copper_zones": 0,
   "drc_freshly_run": true,
   "drc_violations": 0,