feat(adminfront): add org chart to sidebar navigation

Adds the Organization Chart tab to the main sidebar for all users. Removes the 'View Org Chart' button from the Tenant List page. Enhances active state logic for nested routes.

adminfront/src/locales/en.toml

@@ -828,6 +828,7 @@ plane = "ADMIN PLANE"
 subtitle = "Manage your organization"
 
 [ui.admin.nav]
+org_chart = "Org Chart"
 api_keys = "API Keys"
 audit_logs = "Audit Logs"
 auth_guard = "Auth Guard"

adminfront/src/locales/ko.toml

@@ -830,6 +830,7 @@ plane = "ADMIN PLANE"
 subtitle = "Manage your organization"
 
 [ui.admin.nav]
+org_chart = "조직도"
 api_keys = "API 키"
 audit_logs = "감사 로그"
 auth_guard = "인증 가드"

adminfront/src/locales/template.toml

@@ -829,6 +829,7 @@ plane = ""
 subtitle = ""
 
 [ui.admin.nav]
+org_chart = ""
 api_keys = ""
 audit_logs = ""
 auth_guard = ""