updated artifact links: added target="_blank" and rel="noopener noreferrer" to ensure external logs and reports open in a new tab; updated docs and tests accordingly

docs/plan/08-web-ui.md

@@ -80,3 +80,7 @@ Deviation: the listing enumerates origin branches instead of legacy's local bran
 
 Addendum (2026-07-07): the legacy per-page reload button (`⟳`, top right) was also re-added on request, next to the live indicator.
 On polling pages it triggers an immediate data refresh via the page's poller; pages without a poller (artifact index) reload fully.
+
+Addendum (2026-07-07): all links that leave the GitTally UI open in a new tab (`target="_blank" rel="noopener noreferrer"`).
+This already held for Gitea branch/commit links and the footer; it was added for the artifact page's log and report links, whose targets have no navigation.
+Links between GitTally pages (nav, artifact index) stay in the same tab.

src/main/resources/templates/artifact.html

@@ -45,7 +45,8 @@
         <h2>Logs</h2>
         <ul th:if="${!#lists.isEmpty(logs)}">
             <li th:each="log : ${logs}">
-                <a th:href="'/artifacts/' + ${artifactKey} + '/' + ${log}" th:text="${log}">build.log</a>
+                <a th:href="'/artifacts/' + ${artifactKey} + '/' + ${log}" target="_blank"
+                   rel="noopener noreferrer" th:text="${log}">build.log</a>
             </li>
         </ul>
         <p th:if="${#lists.isEmpty(logs)}" class="muted">
@@ -56,8 +57,8 @@
         <h2>Build Artifacts</h2>
         <ul th:if="${!#lists.isEmpty(reportIndexes)}">
             <li th:each="report : ${reportIndexes}">
-                <a th:href="'/artifacts/' + ${artifactKey} + '/reports/' + ${report}"
-                   th:text="'reports/' + ${report}">reports/tests/index.html</a>
+                <a th:href="'/artifacts/' + ${artifactKey} + '/reports/' + ${report}" target="_blank"
+                   rel="noopener noreferrer" th:text="'reports/' + ${report}">reports/tests/index.html</a>
             </li>
         </ul>
         <p th:if="${#lists.isEmpty(reportIndexes)}" class="muted">

src/test/kotlin/de/hoennig/gittally/server/UiControllerTest.kt

@@ -210,10 +210,11 @@ class UiControllerTest : FunSpec() {
                 .perform(get("/builds/main-abc123-key"))
                 .andExpect(status().isOk)
                 .andExpect(content().string(containsString("./gradlew --console=plain --no-daemon test")))
-                .andExpect(content().string(containsString("/artifacts/main-abc123-key/build.stdout.log")))
+                .andExpect(content().string(containsString("""/artifacts/main-abc123-key/build.stdout.log" target="_blank"""")))
                 .andExpect(content().string(containsString("/artifacts/main-abc123-key/build.stderr.log")))
-                .andExpect(content().string(containsString("reports/tests/test/index.html")))
-                .andExpect(content().string(not(containsString("reports/tests/test/packages/index.html"))))
+                .andExpect(
+                    content().string(containsString("""/artifacts/main-abc123-key/reports/tests/test/index.html" target="_blank"""")),
+                ).andExpect(content().string(not(containsString("reports/tests/test/packages/index.html"))))
         }
 
         test("artifact index of a pruned build explains the missing artifacts") {