refactor(app): fold BasePGPActivity into the autofill decryption

AutofillDecryptActivity was its last subclass: it now sets FLAG_SECURE
and injects the settings, crypto repository and dispatchers itself. The
path and clipboard helpers move to CryptoExtensions.kt as top-level
functions (a test pins the path helpers), and the FILE_PATH extra key
moves, unchanged, to LaunchActivity. An invalid or short .gpg-id ID is
reported with a toast: the snackbar never showed in the autofill
decryption, which closes its window at once.

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

1 files changed, 27 insertions, 0 deletions

diff --git a/app/src/test/java/app/passwordstore/ui/crypto/CryptoExtensionsTest.kt b/app/src/test/java/app/passwordstore/ui/crypto/CryptoExtensionsTest.kt
new file mode 100644
index 00000000..fee6bf72
--- /dev/null
+++ b/app/src/test/java/app/passwordstore/ui/crypto/CryptoExtensionsTest.kt
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+package app.passwordstore.ui.crypto
+
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+/** Pins the path helpers' behavior across their move out of BasePGPActivity. */
+class CryptoExtensionsTest {
+
+  @Test
+  fun parentPathIsRelativeToTheStore() {
+    assertEquals("/social/", getParentPath("/store/social/facebook.gpg", "/store"))
+    assertEquals("/", getParentPath("/store/example.org.gpg", "/store"))
+  }
+
+  @Test
+  fun longNameJoinsFolderAndName() {
+    // StoreActions passes absolute folders, PasswordItem its path relative to the store.
+    assertEquals("work/x", getLongName("/store/work", "/store", "x"))
+    assertEquals("social/facebook", getLongName("/social/", "/store", "facebook"))
+    assertEquals("x", getLongName("/store", "/store", "x"))
+  }
+}