Refactor auto-boot-ollama-host script into modular structure with separate configuration, network, SSH, and service management modules for improved maintainability and readability

scripts/utils.lua

@@ -0,0 +1,18 @@
+-- Utility functions module for auto-boot-ollama-host
+-- Provides logging and other utility functions
+
+local utils = {}
+
+-- Logging function with timestamp
+function utils.log(msg)
+  io.stdout:write(os.date("[%F %T] "), msg, "\n")
+  io.stdout:flush()
+end
+
+-- Get environment variable with default value
+function utils.getenv(name, def)
+  local v = os.getenv(name)
+  return (v ~= nil and v ~= "") and v or def
+end
+
+return utils