Update READMEs to emphasize batch files as entry points

Each folder README now has:
- Quick Start section with batch file commands
- Batch Launchers table listing entry points
- PowerShell Scripts section for detailed documentation

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

shopfloor-pcs-example.txt

@@ -0,0 +1,26 @@
+# Shopfloor PC IP Addresses
+# One IP address per line
+# Lines starting with # are ignored
+
+# Production Line 1
+10.48.130.100
+10.48.130.101
+10.48.130.102
+
+# Production Line 2
+10.48.130.110
+10.48.130.111
+10.48.130.112
+
+# Quality Control
+10.48.130.120
+10.48.130.121
+
+# Maintenance
+10.48.130.130
+10.48.130.131
+
+# Example hostnames (if DNS resolution works)
+# SHOPFLOOR-PC-01
+# SHOPFLOOR-PC-02
+# SHOPFLOOR-PC-03