fixes

backend/app/schemas/router.py

@@ -21,6 +21,11 @@ class RouterBase(BaseModel):
     disable_binary_backups: bool = False
     disable_ping: bool = False
 
+    @field_validator("name", mode="before")
+    @classmethod
+    def normalize_name(cls, value: str | None) -> str:
+        return (value or "").strip()
+
     @field_validator("name")
     @classmethod
     def validate_name(cls, value: str) -> str:
@@ -63,7 +68,22 @@ class RouterUpdate(BaseModel):
     disable_binary_backups: bool | None = None
     disable_ping: bool | None = None
 
-    @field_validator("name", "host", "ssh_user", "ssh_key", "ssh_password", mode="before")
+    @field_validator("name", mode="before")
+    @classmethod
+    def normalize_name(cls, value: str | None) -> str | None:
+        normalized = (value or "").strip()
+        return normalized or None
+
+    @field_validator("name")
+    @classmethod
+    def validate_name(cls, value: str | None) -> str | None:
+        if value is None:
+            return value
+        if not ALLOWED_NAME_REGEX.match(value):
+            raise ValueError("Only letters, digits, dashes and underscores are allowed")
+        return value
+
+    @field_validator("host", "ssh_user", "ssh_key", "ssh_password", mode="before")
     @classmethod
     def normalize_text(cls, value: str | None) -> str | None:
         normalized = (value or "").strip()