docs: thread-forming M3x10 total = 22 (Body 8 / Curtain 14); drop wire nail

Owner-confirmed: 22 thread-forming screws total. BOM-V2.0 Curtain 11 -> 14
(Body stays 8: 4 PCB + 4 wall-plate; the 2 motor-mount screws are machine
screws into the motor, not thread-forming). Wiki quick-BOM aggregate 23 -> 22.

Wire nail removed from the BOM Mounting Hardware — no longer included in the kit.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: daniel-frenkel

docs/BOM-V2.0.md

@@ -23,7 +23,7 @@
 | Part | Qty | Description |
 | :--- | :---: | :--- |
 | PTFE tubing, 3 mm ID × 5 mm OD (pre-cut) | 6 | 2 × 10 mm, 2 × 40 mm, 2 × 70 mm — [buy](https://valarsystems.com/products/ptfe-tube). |
-| M3 × 10 mm screw, self-tapping | 11 | [Thread-forming screw](https://valarsystems.com/products/m3-x-10mm-thread-forming-screw). |
+| M3 × 10 mm screw, self-tapping | 14 | [Thread-forming screw](https://valarsystems.com/products/m3-x-10mm-thread-forming-screw). |
 | M3 square nut | 1 | [Curtain-pulley nut](https://valarsystems.com/products/m3-square-nut). |
 | Zip tie | 1 | Small, 2–3 mm wide — [buy](https://valarsystems.com/products/zip-tie). |
 | V623ZZ pulley | 1 | 3 × 12 × 4 mm — [V-groove pulley](https://valarsystems.com/products/v-groove-pulley). |
@@ -34,7 +34,6 @@
 | Part | Qty | Description |
 | :--- | :---: | :--- |
 | Foam mounting squares (set of 5) | 5 | 1" square double-sided foam. Wipe the surface clean and dry, then press firmly — [buy](https://valarsystems.com/products/foam-mounting-squares). |
-| #17 × 1 1/4" wire nail | 3 | Use to nail to drywall only — [buy](https://valarsystems.com/products/wire-nail-17-x-1-1-4-in). |
 
 ## Assembly Tools Required
 

docs/wiki-Build-Guide.md

@@ -98,7 +98,7 @@ Everything the build needs is below. For the full, maintained list see the [Bill
 | Bearing (633ZZ, 3 × 13 × 5 mm) | 2 |
 | MK8 drive gear | 1 |
 | Zip tie | 4 |
-| M3 × 10 mm thread-forming screw | 23 |
+| M3 × 10 mm thread-forming screw | 22 |
 
 ---