Update README for 8HP format and automated routing

README.md

@@ -16,7 +16,7 @@ Eurorack module for measuring round-trip latency in audio/CV signal chains.
 
 | Parameter | Value |
 |-----------|-------|
-| Width | 6 HP (30mm) |
+| Width | 8 HP (40mm) |
 | Depth | <25mm |
 | Power +12V | ~25mA |
 | Power -12V | 0mA |
@@ -66,16 +66,16 @@ Full BOM with LCSC part numbers in [hardware/BOM.md](hardware/BOM.md).
 
 1. Open `hardware/kicad/SN-L00.kicad_pro`
 2. Update PCB from schematic: **Tools → Update PCB from Schematic** (F8)
-3. Place components using the script:
-   ```python
-   # In KiCad Scripting Console (Tools → Scripting Console)
-   exec(open('scripts/place_components.py').read())
-   ```
-4. Autoroute using Freerouting:
+3. **Automated routing** (from terminal):
    ```bash
-   # Export DSN from KiCad: File → Export → Specctra DSN
-   ./hardware/kicad/scripts/autoroute.sh
-   # Import SES in KiCad: File → Import → Specctra Session
+   cd hardware/kicad
+   python3 scripts/autoroute.py
+   ```
+   This places components, routes, and runs DRC automatically.
+
+   Or manually in KiCad Scripting Console:
+   ```python
+   exec(open('scripts/autoroute_full.py').read())
    ```
 5. Fill zones: Press **B**
 6. Run DRC: **Inspect → Design Rules Checker**
@@ -83,10 +83,10 @@ Full BOM with LCSC part numbers in [hardware/BOM.md](hardware/BOM.md).
 
 ### Manufacturing
 
-- PCB: 2-layer, 28×100mm
+- PCB: 2-layer, 40×100mm (8HP)
 - Assembly: PCBWay or similar (SMD parts)
 - Hand-solder: RP2040-Zero module, OLED module
-- Panel: Aluminum or PCB (6HP)
+- Panel: Aluminum or PCB (8HP, 40.30×128.50mm)
 
 ## Firmware