feat: add Daily Report to admin sidebar via custom AdminSite

- Create OpenClawAdminSite (openclaw_admin) with Daily Reports menu in sidebar
- Re-register Session/Message/ToolCall with custom site
- Add daily/daily-reports URLs at AdminSite level
- Override admin/index.html template for sidebar item
- Use self.admin_view (not admin.site.admin_view) for site-aware view wrapping
- Clean up admin.py: remove inline URLs from SessionAdmin (now at site level)

src/config/urls.py

@@ -1,7 +1,7 @@
-from django.contrib import admin
 from django.urls import path, include
+from openclaw.admin_custom_site import openclaw_admin_site
 
 urlpatterns = [
-    path("admin/", admin.site.urls),
+    path("admin/", openclaw_admin_site.urls),
     path("api/", include("openclaw.urls")),
 ]

src/openclaw/admin.py

@@ -1,10 +1,8 @@
 from django.contrib import admin
 from django.http import HttpResponse
-from django.template.response import TemplateResponse
 
 from openclaw.export import export_daily_markdown
 from openclaw.models import Session, Message, ToolCall
-from openclaw.admin_new_views import daily_report_list_view, daily_report_detail_view
 
 
 class MessageInline(admin.TabularInline):
@@ -45,42 +43,18 @@ def export_to_markdown(modeladmin, request, queryset):
 class SessionAdmin(admin.ModelAdmin):
     actions = [export_to_markdown]
     list_display = (
-        "session_id",
-        "agent_name",
-        "model_id",
-        "total_tokens",
-        "message_count",
-        "tool_call_count",
-        "status",
-        "start_time",
+        "session_id", "agent_name", "model_id", "total_tokens",
+        "message_count", "tool_call_count", "status", "start_time",
     )
     list_filter = ("agent_name", "source_node", "model_id", "start_time")
     search_fields = ("session_id", "cwd")
     ordering = ("-start_time",)
     inlines = [MessageInline, ToolCallInline]
     readonly_fields = (
-        "session_id",
-        "agent_name",
-        "source_node",
-        "start_time",
-        "end_time",
-        "pushed_at",
+        "session_id", "agent_name", "source_node",
+        "start_time", "end_time", "pushed_at",
     )
 
-    def get_urls(self):
-        from django.urls import path
-        urls = super().get_urls()
-        custom_urls = [
-            path("daily/", admin.site.admin_view(daily_report_list_view), name="openclaw_daily"),
-            path("daily-reports/", admin.site.admin_view(daily_report_list_view), name="openclaw_daily_reports"),
-            path(
-                "daily-reports/<str:agent_name>/<int:year>-<int:month>-<int:day>/",
-                admin.site.admin_view(daily_report_detail_view),
-                name="openclaw_daily_report_detail",
-            ),
-        ]
-        return custom_urls + urls
-
 
 @admin.register(Message)
 class MessageAdmin(admin.ModelAdmin):

src/openclaw/admin_custom_site.py

@@ -0,0 +1,52 @@
+"""
+Custom AdminSite for OpenClaw — adds Daily Report to sidebar + URLs.
+Re-registers Session/Message/ToolCall from admin.py, and adds custom report URLs.
+"""
+
+from django.contrib.admin import AdminSite
+
+from openclaw.admin_new_views import daily_report_list_view, daily_report_detail_view
+
+
+class OpenClawAdminSite(AdminSite):
+    site_header = "OpenClaw Archive"
+    site_title = "OpenClaw Admin"
+    index_title = "Agent Sessions"
+
+    def get_urls(self):
+        from django.urls import path
+        urls = super().get_urls()
+        custom_urls = [
+            path(
+                "daily/",
+                self.admin_view(daily_report_list_view),
+                name="openclaw_daily",
+            ),
+            path(
+                "daily-reports/",
+                self.admin_view(daily_report_list_view),
+                name="openclaw_daily_reports",
+            ),
+            path(
+                "daily-reports/<str:agent_name>/<int:year>-<int:month>-<int:day>/",
+                self.admin_view(daily_report_detail_view),
+                name="openclaw_daily_report_detail",
+            ),
+        ]
+        return custom_urls + urls
+
+    def index(self, request, extra_context=None):
+        extra_context = extra_context or {}
+        extra_context["show_daily_report"] = True
+        return super().index(request, extra_context)
+
+
+openclaw_admin_site = OpenClawAdminSite(name="openclaw_admin")
+
+# Re-register models with this custom site (imported from admin.py)
+from openclaw.admin import SessionAdmin, MessageAdmin, ToolCallAdmin
+from openclaw.models import Session, Message, ToolCall
+
+openclaw_admin_site.register(Session, SessionAdmin)
+openclaw_admin_site.register(Message, MessageAdmin)
+openclaw_admin_site.register(ToolCall, ToolCallAdmin)

src/templates/admin/index.html

@@ -0,0 +1,24 @@
+{% extends "admin/index.html" %}
+{% load static %}
+
+{% block branding %}
+<h1 id="site-name">
+  <a href="{% url 'openclaw_admin:index' %}">{{ site_header|default:"Django Admin" }}</a>
+</h1>
+{% endblock %}
+
+{% block nav-sidebar %}
+{{ block.super }}
+
+{# Daily Report custom sidebar item #}
+<div class="app-openclaw module">
+  <table>
+    <caption>
+      <a href="{% url 'openclaw_admin:openclaw_daily_reports' %}" class="section">
+        📊 Daily Reports
+      </a>
+    </caption>
+  </table>
+</div>
+
+{% endblock %}