fix: correct broken batch file paths and update README

- start-llama-server.bat: fix LLAMA_DIR to bin\llama (was bin\ollama),
  fix model to qwen2.5-coder-1.5b (was Llama-3.2-1B), use correct
  GPU (llama-server.exe) and CPU (cpu\llama-server-cpu.exe) binaries
- start-windows-mcp.bat: remove dead python313\ tier, use single
  embedded Python 3.13 at python\python.exe
- run-hermes.bat: use Scripts\hermes.exe instead of -m hermes_cli
  (no __main__.py in package), fix offline mode to use single
  config.yaml instead of non-existent config.offline.yaml
- run-hermes.ps1: same hermes_cli → hermes.exe fix
- README.txt: update to match actual USB state (Python 3.13, 142
  wheels, Qwen2.5-Coder-1.5B 1117MB model, correct dir structure)

build/output/run-hermes.ps1

@@ -43,6 +43,13 @@ if (-not (Test-Path $Marker)) {
     Write-Host "[OK] Hermes Agent installed." -ForegroundColor Green
 }
 
+# Check Hermes CLI installed
+if (-not (Test-Path $HermesExe)) {
+    Write-Host "[ERROR] Hermes CLI not found at $HermesExe" -ForegroundColor Red
+    Write-Host "Run this script again to install Hermes Agent first."
+    exit 1
+}
+
 # Auto-start Windows-MCP server
 $mcpHealth = "http://127.0.0.1:8000/mcp/health"
 try {
@@ -69,7 +76,7 @@ try {
 # Launch Hermes
 Write-Host ""
 Write-Host "[*] Starting Hermes Agent..."
-& $PythonExe -m hermes_cli --config $HermesConfig
+& $HermesExe --config $HermesConfig
 
 Write-Host ""
 Write-Host "[*] Hermes exited."