Add localization strings and iOS test infrastructure

- Expand Localizable.xcstrings with 426 new localization entries
- Add xctestplan files (CI, Cleanup, Parallel, Seed) for structured test runs
- Add run_ui_tests.sh script for UI test execution

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

iosApp/SeedTests.xctestplan

@@ -0,0 +1,31 @@
+{
+  "configurations" : [
+    {
+      "id" : "A1000001-SEED-4A1A-BFDC-000000000001",
+      "name" : "Seed Configuration",
+      "options" : {
+
+      }
+    }
+  ],
+  "defaultOptions" : {
+    "targetForVariableExpansion" : {
+      "containerPath" : "container:honeyDue.xcodeproj",
+      "identifier" : "D4ADB376A7A4CFB73469E173",
+      "name" : "HoneyDue"
+    }
+  },
+  "testTargets" : [
+    {
+      "selectedTests" : [
+        "AAA_SeedTests"
+      ],
+      "target" : {
+        "containerPath" : "container:honeyDue.xcodeproj",
+        "identifier" : "1CBF1BEC2ECD9768001BF56C",
+        "name" : "HoneyDueUITests"
+      }
+    }
+  ],
+  "version" : 1
+}