Sc 14101 (#5524)

**Story card:**
[sc-14101](https://app.shortcut.com/simpledotorg/story/14101/add-national-dashboard-link-in-the-top-navigation-bar-in-the-dashboard-ethiopia-bangladesh-sri-lanka)

## Because

Navigation is not working for navigational breadcrumb from srilanka.

## This addresses

Fix for the navigational breadcrumb 

## Test instructions

Enter detailed instructions for how to test this PR...

Author: Gyan-Gupta-Rtsl

app/controllers/reports/regions_controller.rb

@@ -430,8 +430,8 @@ def find_region
     @region ||= authorize {
       case report_scope
       when "organization"
-        organization = current_admin.user_access.accessible_organizations(:view_reports).find_by!(slug: report_params[:id])
-        organization.region
+        organization = current_admin.user_access.accessible_organizations(:view_reports).find_by(slug: report_params[:id]) || find_organization_slug(report_params[:id])
+        organization&.region || (raise ActiveRecord::RecordNotFound, "Organization not found for slug: #{report_params[:id]}")
       when "state"
         current_admin.user_access.accessible_state_regions(:view_reports).find_by!(slug: report_params[:id])
       when "district"
@@ -446,6 +446,13 @@ def find_region
     }
   end
 
+  def find_organization_slug(slug)
+    region = Region.find_by(slug: slug, region_type: "organization")
+    return unless region&.source_type == "Organization"
+
+    current_admin.user_access.accessible_organizations(:view_reports).find_by(id: region.source_id)
+  end
+
   def report_params
     params.permit(:id, :bust_cache, :v2, :report_scope, {period: [:type, :value]})
   end

spec/controllers/reports/regions_controller_spec.rb

@@ -18,6 +18,29 @@
       @facility_region = @facility.region
     end
 
+    context "when report_scope is organization" do
+      let(:organization) { create(:organization, slug: "valid-org-slug") }
+      it "finds the organization by its slug when accessible" do
+        sign_in(cvho.email_authentication)
+        get :show, params: {id: organization.slug, report_scope: "organization"}
+        expect(assigns(:region)).to eq(organization.region)
+      end
+
+      it "finds the organization using its region slug as a fallback" do
+        sign_in(cvho.email_authentication)
+        organization.region.update(slug: "valid-org-slug-organization")
+        get :show, params: {id: organization.region.slug, report_scope: "organization"}
+        expect(assigns(:region).slug).to eq(organization.region.slug)
+      end
+
+      it "redirects with an alert if the region slug does not match any accessible organization" do
+        sign_in(cvho.email_authentication)
+        get :show, params: {id: "unknown-region-slug", report_scope: "organization"}
+        expect(flash[:alert]).to eq("You are not authorized to perform this action.")
+        expect(response).to be_redirect
+      end
+    end
+
     it "redirects if matching region slug not found" do
       sign_in(cvho.email_authentication)
       get :show, params: {id: "String-unknown", report_scope: "bad-report_scope"}