Use single pack structure.

Signed-off-by: Yilin Sun <imi415@imi.moe>

Pudding_BMS.kicad_pcb

@@ -1,2 +1,80 @@
-(kicad_pcb (version 20211014) (generator pcbnew)
-)
+(kicad_pcb (version 20221018) (generator pcbnew)
+
+  (general
+    (thickness 1.6)
+  )
+
+  (paper "A4")
+  (layers
+    (0 "F.Cu" signal)
+    (31 "B.Cu" signal)
+    (32 "B.Adhes" user "B.Adhesive")
+    (33 "F.Adhes" user "F.Adhesive")
+    (34 "B.Paste" user)
+    (35 "F.Paste" user)
+    (36 "B.SilkS" user "B.Silkscreen")
+    (37 "F.SilkS" user "F.Silkscreen")
+    (38 "B.Mask" user)
+    (39 "F.Mask" user)
+    (40 "Dwgs.User" user "User.Drawings")
+    (41 "Cmts.User" user "User.Comments")
+    (42 "Eco1.User" user "User.Eco1")
+    (43 "Eco2.User" user "User.Eco2")
+    (44 "Edge.Cuts" user)
+    (45 "Margin" user)
+    (46 "B.CrtYd" user "B.Courtyard")
+    (47 "F.CrtYd" user "F.Courtyard")
+    (48 "B.Fab" user)
+    (49 "F.Fab" user)
+    (50 "User.1" user)
+    (51 "User.2" user)
+    (52 "User.3" user)
+    (53 "User.4" user)
+    (54 "User.5" user)
+    (55 "User.6" user)
+    (56 "User.7" user)
+    (57 "User.8" user)
+    (58 "User.9" user)
+  )
+
+  (setup
+    (pad_to_mask_clearance 0)
+    (pcbplotparams
+      (layerselection 0x00010fc_ffffffff)
+      (plot_on_all_layers_selection 0x0000000_00000000)
+      (disableapertmacros false)
+      (usegerberextensions false)
+      (usegerberattributes true)
+      (usegerberadvancedattributes true)
+      (creategerberjobfile true)
+      (dashed_line_dash_ratio 12.000000)
+      (dashed_line_gap_ratio 3.000000)
+      (svgprecision 4)
+      (plotframeref false)
+      (viasonmask false)
+      (mode 1)
+      (useauxorigin false)
+      (hpglpennumber 1)
+      (hpglpenspeed 20)
+      (hpglpendiameter 15.000000)
+      (dxfpolygonmode true)
+      (dxfimperialunits true)
+      (dxfusepcbnewfont true)
+      (psnegative false)
+      (psa4output false)
+      (plotreference true)
+      (plotvalue true)
+      (plotinvisibletext false)
+      (sketchpadsonfab false)
+      (subtractmaskfromsilk false)
+      (outputformat 1)
+      (mirror false)
+      (drillshape 1)
+      (scaleselection 1)
+      (outputdirectory "")
+    )
+  )
+
+  (net 0 "")
+
+)

Pudding_BMS.kicad_pro

@@ -339,7 +339,7 @@
     ],
     [
       "8609e239-0667-4eaf-9d2e-29d9daa82380",
-      "Battery Packs"
+      "Battery Pack"
     ]
   ],
   "text_variables": {}

Pudding_BMS.kicad_sch

@@ -12,7 +12,7 @@
     (stroke (width 0.1524) (type solid))
     (fill (color 0 0 0 0.0000))
     (uuid 8609e239-0667-4eaf-9d2e-29d9daa82380)
-    (property "Sheetname" "Battery Packs" (at 17.78 18.3384 0)
+    (property "Sheetname" "Battery Pack" (at 17.78 18.3384 0)
       (effects (font (size 1.27 1.27)) (justify left bottom))
     )
     (property "Sheetfile" "battery_packs.kicad_sch" (at 17.78 48.8446 0)