feat: 完成 TraceMemo v2.2.0 品牌身份与数据迁移升级

- 将 WechatExplorer 产品身份升级为 TraceMemo
- 更新 appId、Runtime Identity、Reader Skill 和 API 环境变量
- 增加旧用户数据、Knowledge、Token 与 AI Provider 安全迁移
- 保留 Windows WeFlow 和旧版配置兼容
- 完善首次启动迁移测试及 v2.2.0 发布文档
- 移除 macOS Intel x64 构建与发布支持

services/wechat-connector/ilink/auth.go

@@ -78,13 +78,40 @@ func PollQRStatus(ctx context.Context, qrcode string, onStatus func(status strin
 	}
 }
 
-// AccountsDir returns the directory where account credentials are stored.
-func AccountsDir() (string, error) {
+func accountsDir(rootName string) (string, error) {
 	home, err := os.UserHomeDir()
 	if err != nil {
 		return "", err
 	}
-	return filepath.Join(home, ".wechatexplorer", "wechat-connector", "accounts"), nil
+	return filepath.Join(home, rootName, "wechat-connector", "accounts"), nil
+}
+
+// AccountsDir returns the TraceMemo directory where new credentials are stored.
+func AccountsDir() (string, error) {
+	return accountsDir(".tracememo")
+}
+
+// LegacyAccountsDir is read-only compatibility for v2.1.9 and earlier.
+func LegacyAccountsDir() (string, error) {
+	return accountsDir(".wechatexplorer")
+}
+
+func accountDirectoryForID(accountID string) (string, error) {
+	current, err := AccountsDir()
+	if err != nil {
+		return "", err
+	}
+	if _, err := os.Stat(filepath.Join(current, accountID+".json")); err == nil {
+		return current, nil
+	}
+	legacy, err := LegacyAccountsDir()
+	if err != nil {
+		return "", err
+	}
+	if _, err := os.Stat(filepath.Join(legacy, accountID+".json")); err == nil {
+		return legacy, nil
+	}
+	return current, nil
 }
 
 // NormalizeAccountID converts raw bot ID to filesystem-safe format.
@@ -159,13 +186,7 @@ func SaveCredentials(creds *Credentials) error {
 	return nil
 }
 
-// LoadAllCredentials loads all saved account credentials.
-func LoadAllCredentials() ([]*Credentials, error) {
-	dir, err := AccountsDir()
-	if err != nil {
-		return nil, err
-	}
-
+func loadCredentialsFromDir(dir string) ([]*Credentials, error) {
 	entries, err := os.ReadDir(dir)
 	if err != nil {
 		if os.IsNotExist(err) {
@@ -191,6 +212,24 @@ func LoadAllCredentials() ([]*Credentials, error) {
 	return result, nil
 }
 
+// LoadAllCredentials loads TraceMemo credentials first and falls back to the
+// untouched WechatExplorer directory for one-version upgrade compatibility.
+func LoadAllCredentials() ([]*Credentials, error) {
+	current, err := AccountsDir()
+	if err != nil {
+		return nil, err
+	}
+	credentials, err := loadCredentialsFromDir(current)
+	if err != nil || len(credentials) > 0 {
+		return credentials, err
+	}
+	legacy, err := LegacyAccountsDir()
+	if err != nil {
+		return nil, err
+	}
+	return loadCredentialsFromDir(legacy)
+}
+
 // CredentialsPath returns the path for display purposes.
 func CredentialsPath() (string, error) {
 	return AccountsDir()

services/wechat-connector/ilink/auth_test.go

@@ -1,6 +1,7 @@
 package ilink
 
 import (
+	"encoding/json"
 	"os"
 	"path/filepath"
 	"testing"
@@ -34,3 +35,46 @@ func TestSaveCredentialsKeepsOnlyLatestAccount(t *testing.T) {
 		t.Fatalf("old sync state still exists: %v", err)
 	}
 }
+
+func TestAccountsDirUsesTraceMemoIdentity(t *testing.T) {
+	home := t.TempDir()
+	t.Setenv("HOME", home)
+	dir, err := AccountsDir()
+	if err != nil {
+		t.Fatal(err)
+	}
+	want := filepath.Join(home, ".tracememo", "wechat-connector", "accounts")
+	if dir != want {
+		t.Fatalf("AccountsDir() = %q, want %q", dir, want)
+	}
+}
+
+func TestLoadAllCredentialsFallsBackToLegacyDirectory(t *testing.T) {
+	home := t.TempDir()
+	t.Setenv("HOME", home)
+	legacyDir, err := LegacyAccountsDir()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := os.MkdirAll(legacyDir, 0o700); err != nil {
+		t.Fatal(err)
+	}
+	legacy := &Credentials{ILinkBotID: "legacy@im.bot", BotToken: "legacy-token"}
+	data, err := json.Marshal(legacy)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(legacyDir, NormalizeAccountID(legacy.ILinkBotID)+".json"), data, 0o600); err != nil {
+		t.Fatal(err)
+	}
+	accounts, err := LoadAllCredentials()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(accounts) != 1 || accounts[0].BotToken != legacy.BotToken {
+		t.Fatalf("accounts = %#v", accounts)
+	}
+	if _, err := os.Stat(legacyDir); err != nil {
+		t.Fatalf("legacy directory changed or removed: %v", err)
+	}
+}

services/wechat-connector/ilink/monitor.go

@@ -33,12 +33,12 @@ type Monitor struct {
 
 // NewMonitor creates a new long-poll monitor.
 func NewMonitor(client *Client, handler MessageHandler) (*Monitor, error) {
-	home, err := os.UserHomeDir()
+	accountID := NormalizeAccountID(client.BotID())
+	accountsRoot, err := accountDirectoryForID(accountID)
 	if err != nil {
 		return nil, err
 	}
-	accountID := NormalizeAccountID(client.BotID())
-	bufPath := filepath.Join(home, ".wechatexplorer", "wechat-connector", "accounts", accountID+".sync.json")
+	bufPath := filepath.Join(accountsRoot, accountID+".sync.json")
 
 	m := &Monitor{
 		client:       client,
@@ -73,7 +73,7 @@ func (m *Monitor) Run(ctx context.Context) error {
 			log.Printf("[monitor] GetUpdates error (%d/%d, backoff=%s): %v",
 				m.failures, maxConsecutiveFailures, backoff, err)
 			if m.failures == maxConsecutiveFailures {
-                log.Printf("[monitor] WARNING: %d consecutive failures; reconnect from TraceMemo if this persists.", maxConsecutiveFailures)
+				log.Printf("[monitor] WARNING: %d consecutive failures; reconnect from TraceMemo if this persists.", maxConsecutiveFailures)
 			}
 			select {
 			case <-time.After(backoff):
@@ -96,7 +96,7 @@ func (m *Monitor) Run(ctx context.Context) error {
 			} else {
 				// Sync buf already empty but still getting session expired:
 				// the bot token itself has expired. The user needs to re-login.
-                log.Printf("[monitor] WARNING: WeChat session expired and cannot be auto-recovered; reconnect from TraceMemo.")
+				log.Printf("[monitor] WARNING: WeChat session expired and cannot be auto-recovered; reconnect from TraceMemo.")
 			}
 			select {
 			case <-time.After(sessionExpiredBackoff):