feat: persist local configuration and device identity (#3)

Store receiver and identity together in Keychain, with versioned tracking
preferences, explicit authorization retry and stable Settings focus.
Adopt free Apple Development locally and credential-free ad hoc CI.
Run configuration and focus tests through both CI toolchains.

Final decisions: https://github.com/jayanezj/traccar-client-macos/issues/3#issuecomment-6396087703

.github/workflows/ci.yml

@@ -60,6 +60,8 @@ jobs:
       EXPECTED_XCODE_BUILD: ${{ matrix.xcode_build }}
       EXPECTED_SDK_VERSION: ${{ matrix.sdk_version }}
       EXPECTED_OS_MAJOR: ${{ matrix.os_major }}
+      # Untrusted PRs/forks never receive the Apple Development signing key.
+      TRACCAR_SIGNING_MODE: adhoc
     steps:
       - name: Check out source
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
@@ -79,6 +81,10 @@ jobs:
         run: |
           scripts/build.sh "$RUNNER_TEMP/traccar-ci" Release \
             2>&1 | tee "$RUNNER_TEMP/ci-diagnostics/build-release.log"
+      - name: Test configuration and persistence
+        run: |
+          scripts/test.sh "$RUNNER_TEMP/traccar-ci" \
+            2>&1 | tee "$RUNNER_TEMP/ci-diagnostics/tests.log"
       - name: Verify application binaries
         run: scripts/verify-build.sh "$RUNNER_TEMP/traccar-ci"
       - name: Sanitize failure diagnostics