feat(app): add an about screen

Version with build number, documentation and project links, Ko-fi, the privacy
statement, the certificate this copy was really signed with, and the licenses.
Debug builds also show the git commit, since a test build can share its version
with a release.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/app/src/test/java/app/passwordstore/ui/settings/AboutTest.kt b/app/src/test/java/app/passwordstore/ui/settings/AboutTest.kt
new file mode 100644
index 00000000..e692c229
--- /dev/null
+++ b/app/src/test/java/app/passwordstore/ui/settings/AboutTest.kt
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+package app.passwordstore.ui.settings
+
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class AboutTest {
+
+  @Test
+  fun versionLineWithoutCommit() {
+    assertEquals("0.3.0 (300)", versionLine("0.3.0", 300, ""))
+  }
+
+  @Test
+  fun versionLineWithCommit() {
+    assertEquals("0.3.0-debug (300) · daa7ee01", versionLine("0.3.0-debug", 300, "daa7ee01"))
+  }
+
+  @Test
+  fun changelogUrlPointsAtTheReleaseTag() {
+    assertEquals(
+      "https://github.com/danixland/HardenedPass/blob/v0.3.0/CHANGELOG.md",
+      changelogUrl("0.3.0-debug"),
+    )
+  }
+
+  @Test
+  fun fingerprintIsColonSeparatedUppercaseSha256() {
+    assertEquals(
+      "BA:78:16:BF:8F:01:CF:EA:41:41:40:DE:5D:AE:22:23:" +
+        "B0:03:61:A3:96:17:7A:9C:B4:10:FF:61:F2:00:15:AD",
+      certificateFingerprint("abc".encodeToByteArray()),
+    )
+  }
+}