refactor(auth): delegate access control to be-system

Remove Agent Desk users, roles, login sessions, tokens, and local permission persistence. Expose the backend as an embeddable ai-agent module with host-provided subject lookup and operation authorization callbacks, and complete the frontend/backend repository split.

internal/pkg/utils/content_chunk.go

@@ -1,7 +1,7 @@
 package utils
 
 import (
-	"agent-desk/internal/pkg/enums"
+	"code.tczkiot.com/wlw/ai-agent/internal/pkg/enums"
 	"strings"
 
 	"golang.org/x/net/html"

internal/pkg/utils/content_chunk_test.go

@@ -1,7 +1,7 @@
 package utils
 
 import (
-	"agent-desk/internal/pkg/enums"
+	"code.tczkiot.com/wlw/ai-agent/internal/pkg/enums"
 	"reflect"
 	"testing"
 )

internal/pkg/utils/message.go

@@ -1,10 +1,10 @@
 package utils
 
 import (
-	"agent-desk/internal/models"
-	"agent-desk/internal/pkg/enums"
-	"agent-desk/internal/repositories"
-	"agent-desk/internal/services/storage"
+	"code.tczkiot.com/wlw/ai-agent/internal/models"
+	"code.tczkiot.com/wlw/ai-agent/internal/pkg/enums"
+	"code.tczkiot.com/wlw/ai-agent/internal/repositories"
+	"code.tczkiot.com/wlw/ai-agent/internal/services/storage"
 	"bytes"
 	"encoding/json"
 	"fmt"

internal/pkg/utils/message_test.go

@@ -1,9 +1,9 @@
 package utils
 
 import (
-	"agent-desk/internal/models"
-	"agent-desk/internal/pkg/config"
-	"agent-desk/internal/pkg/enums"
+	"code.tczkiot.com/wlw/ai-agent/internal/models"
+	"code.tczkiot.com/wlw/ai-agent/internal/pkg/config"
+	"code.tczkiot.com/wlw/ai-agent/internal/pkg/enums"
 	"strings"
 	"testing"
 	"time"

internal/pkg/utils/utils.go

@@ -1,9 +1,9 @@
 package utils
 
 import (
-	"agent-desk/internal/models"
-	"agent-desk/internal/pkg/dto"
-	"agent-desk/internal/pkg/errorsx"
+	"code.tczkiot.com/wlw/ai-agent/internal/models"
+	"code.tczkiot.com/wlw/ai-agent/internal/pkg/dto"
+	"code.tczkiot.com/wlw/ai-agent/internal/pkg/errorsx"
 	"crypto/rand"
 	"strconv"
 	"strings"