Initial import of LogDarioSeq baseline

Establishes version control for the personal Logseq DB fork before
starting the server-client architecture migration and domain features
described in docs/agent-guide and the approved implementation plan.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

clj-e2e/test/logseq/e2e/bidirectional_properties_test.clj

@@ -0,0 +1,51 @@
+(ns logseq.e2e.bidirectional-properties-test
+  (:require [clojure.test :refer [deftest is testing use-fixtures]]
+            [logseq.e2e.api :refer [ls-api-call!]]
+            [logseq.e2e.assert :as assert]
+            [logseq.e2e.fixtures :as fixtures]
+            [logseq.e2e.page :as page]
+            [wally.main :as w]))
+
+(use-fixtures :once fixtures/open-page)
+
+(use-fixtures :each
+  fixtures/new-logseq-page
+  fixtures/validate-graph)
+
+(deftest bidirectional-properties-test
+  (testing "shows reverse property references when a class enables bidirectional properties"
+    (let [friend-prop "friend"
+          person-tag "Person"
+          project-tag "Project"
+          target "Bob"
+          container-page "Bidirectional Props"]
+      (ls-api-call! :editor.createTag person-tag
+                    {:tagProperties [{:name friend-prop
+                                      :schema {:type "node"}}]})
+      (ls-api-call! :editor.createTag project-tag)
+      (let [person (ls-api-call! :editor.getTag person-tag)
+            person-uuid (get person "uuid")
+            friend (ls-api-call! :editor.getPage friend-prop)]
+        (ls-api-call! :editor.upsertBlockProperty (get friend "id")
+                      "logseq.property/classes"
+                      (get person "id"))
+        (is (string? person-uuid))
+        (ls-api-call! :editor.upsertBlockProperty person-uuid
+                      "logseq.property.class/bidirectional-property-title"
+                      "People")
+        (ls-api-call! :editor.upsertBlockProperty person-uuid
+                      "logseq.property.class/enable-bidirectional?"
+                      true))
+      (ls-api-call! :editor.createPage target)
+      (ls-api-call! :editor.createPage container-page)
+      (let [bob (ls-api-call! :editor.getPage target)
+            bob-id (get bob "id")]
+        (ls-api-call! :editor.insertBlock container-page (str "Alice #" person-tag)
+                      {:properties {friend-prop bob-id}})
+        (ls-api-call! :editor.insertBlock container-page (str "Charlie #" project-tag)
+                      {:properties {friend-prop bob-id}}))
+
+      (page/goto-page target)
+      (w/wait-for ".property-k:text('People')")
+      (assert/assert-is-visible ".property-value .block-title-wrap:text('Alice')")
+      (assert/assert-have-count ".property-k:text('Projects')" 0))))