fix: add Daily Reports to admin sidebar via ready() monkey-patch

- openclaw_daily/apps.py ready(): monkey-patch admin.site.get_urls() to add
  daily/ and daily-reports/ URLs under admin namespace (admin: prefix)
- admin_custom_site.py: simplified (no custom site needed)
- Revert urls.py to use default admin.site
- URL now correctly resolves as admin:openclaw_daily_report_detail

src/openclaw_daily/apps.py

@@ -8,11 +8,44 @@ class OpenClawDailyConfig(AppConfig):
 
     def ready(self):
         from django.contrib import admin
+        from django.urls import path
+        from openclaw.admin_new_views import (
+            daily_report_list_view,
+            daily_report_detail_view,
+        )
 
-        _orig = admin.site.get_app_list
+        # ── Monkey-patch admin.site.get_urls ───────────────────────────────
+        _orig_get_urls = admin.site.get_urls
 
-        def _patched(request, app_label=None):
-            app_list = _orig(request, app_label)
+        def _new_get_urls():
+            urls = _orig_get_urls()
+            # Prepend our custom URLs so they take precedence
+            custom = [
+                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
+
+        admin.site.get_urls = _new_get_urls
+
+        # ── Monkey-patch admin.site.get_app_list ──────────────────────────
+        _orig_get_app_list = admin.site.get_app_list
+
+        def _new_get_app_list(request, app_label=None):
+            app_list = _orig_get_app_list(request, app_label)
             app_list.insert(0, {
                 "name": "Daily Reports",
                 "app_label": "openclaw_daily",
@@ -26,4 +59,4 @@ class OpenClawDailyConfig(AppConfig):
             })
             return app_list
 
-        admin.site.get_app_list = _patched
+        admin.site.get_app_list = _new_get_app_list