feat: 同步知识库与工作台相关改动

eai_ap_app/backend-go/internal/store/db.go

@@ -35,6 +35,8 @@ func Init(dbPath string) (*gorm.DB, error) {
 		&model.Product{},
 		&model.Course{},
 		&model.MediaFile{},
+		&model.KnowledgeSpace{},
+		&model.KnowledgeFAQ{},
 		&model.KnowledgeChunk{},
 		&model.Question{},
 		&model.ExamPaper{},
@@ -53,6 +55,9 @@ func Init(dbPath string) (*gorm.DB, error) {
 		&model.Notification{},
 		&model.StudyNote{},
 		&model.Specialist{},
+		&model.WorkerTask{},
+		&model.WorkerArtifact{},
+		&model.WorkerRun{},
 	); err != nil {
 		return nil, err
 	}

eai_ap_app/backend-go/internal/store/seed.go

@@ -1,11 +1,13 @@
 package store
 
 import (
-	"encoding/json"
-	"log"
-	"os"
-	"path/filepath"
-	"strings"
+        "encoding/json"
+        "io"
+        "log"
+        "os"
+        "path/filepath"
+        "runtime"
+        "strings"
 
 	"eaisalestrain/backend/internal/auth"
 	"eaisalestrain/backend/internal/config"
@@ -633,7 +635,40 @@ func ensureMediaLink(src, dst string) error {
 	if err := os.MkdirAll(filepath.Dir(dst), 0o755); err != nil {
 		return err
 	}
-	return os.Symlink(absSrc, dst)
+        if err := os.Symlink(absSrc, dst); err == nil {
+                return nil
+        } else if shouldCopySeedMedia(err) {
+                return copySeedMedia(absSrc, dst)
+        } else {
+                return err
+        }
+}
+
+func shouldCopySeedMedia(err error) bool {
+        if err == nil {
+                return false
+        }
+        // Windows 普通终端默认没有创建符号链接权限，开发环境回退为复制文件即可。
+        return runtime.GOOS == "windows" || strings.Contains(strings.ToLower(err.Error()), "privilege")
+}
+
+func copySeedMedia(src, dst string) error {
+        in, err := os.Open(src)
+        if err != nil {
+                return err
+        }
+        defer in.Close()
+
+        out, err := os.Create(dst)
+        if err != nil {
+                return err
+        }
+        defer out.Close()
+
+        if _, err := io.Copy(out, in); err != nil {
+                return err
+        }
+        return out.Close()
 }
 
 func firstExistingPath(paths ...string) string {