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/import_basic_test.clj

@@ -0,0 +1,49 @@
+(ns logseq.e2e.import-basic-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.graph :as graph]
+   [logseq.e2e.locator :as loc]
+   [logseq.e2e.util :as util]
+   [wally.main :as w])
+  (:import
+   (java.nio.file Paths)))
+
+(use-fixtures :once fixtures/open-page)
+(use-fixtures :each fixtures/new-logseq-page fixtures/validate-graph)
+
+(defn- open-import!
+  []
+  (util/double-esc)
+  (w/click ".toolbar-dots-btn")
+  (w/click (loc/filter "[role='menuitem']" :has-text "Import"))
+  (w/wait-for ".importer"))
+
+(deftest import-options-and-invalid-edn-preserve-current-graph-test
+  (testing "browser import exposes supported sources and rejects invalid EDN atomically"
+    (let [current-graph (ls-api-call! :app.getCurrentGraph)
+          invalid-file (Paths/get "resources/invalid-db-export.edn"
+                                  (into-array String []))
+          graph-name (str "invalid-import-" (random-uuid))]
+      (open-import!)
+      (doseq [selector ["#import-sqlite-db"
+                        "#import-sqlite-zip"
+                        "#import-file-graph"
+                        "#import-debug-transit"
+                        "#import-db-edn"]]
+        (assert/assert-have-count selector 1))
+      (.setInputFiles (w/-query "#import-db-edn") invalid-file)
+      (w/wait-for "#modal-headline")
+      (w/click (loc/filter "button" :has-text "Submit"))
+      (assert/assert-is-visible ".ui__toast")
+      (assert/assert-is-visible "#modal-headline")
+      (w/fill ".form-input" graph-name)
+      (w/click (loc/filter "button" :has-text "Submit"))
+      (w/wait-for ".ui__toast")
+      (assert/assert-is-hidden ".ui__loading, .loading-graph")
+      (is (= current-graph (ls-api-call! :app.getCurrentGraph)))
+      (graph/goto-all-graphs)
+      (assert/assert-is-hidden
+       (loc/filter "#main-content-container" :has-text graph-name)))))