feat: point the per-PR logs link directly at the activity log

The logs link on non-batch PRs targeted the retired /event-logs URL, riding
the dashboard's redirect + param-translation shim (pullRequestNumber →
pull_request) and landing on the activity log's default 1-hour window —
empty for any PR queued earlier. Target /activity-log directly with
pull_request and preset=Past1month, through a URL builder shared with the
batch link. getEventLogLink() becomes getPullRequestActivityLogLink(),
named after its destination. The "logs" label is unchanged.

MRGFY-7878

Test plan:
- npx jest (279 passing) — non-batch PRs assert the direct activity-log URL
  with pull_request and preset; batch link unchanged.
- npx biome check — clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01QyefSTmdtUKXCSbYRJvSQu
Change-Id: Idcbe837c50b3be3ab05a8e875116804ae977a822

Author: JulianMaurin

src/__tests__/queue.test.js

@@ -927,13 +927,13 @@ describe("batch-PR informational links", () => {
         expect(hrefOf(row, "logs")).toBe(BATCH_ACTIVITY_LOG_HREF);
     });
 
-    test("open non-batch PR keeps both the queue and per-PR event-log links", () => {
+    test("open non-batch PR keeps both the queue and per-PR activity-log links", () => {
         setPrDom({ author: "octocat", baseRef: "develop" });
         const row = buildMergifyRow();
         expect(linkLabels(row)).toEqual(["queue", "logs"]);
         expect(hrefOf(row, "queue")).toContain("pull-request-number=42");
         expect(hrefOf(row, "logs")).toBe(
-            "https://dashboard.mergify.com/event-logs?login=acme&repository=widget&pullRequestNumber=42",
+            "https://dashboard.mergify.com/activity-log?login=acme&repository=widget&pull_request=42&preset=Past1month",
         );
     });
 

src/queue.js

@@ -544,34 +544,42 @@ function appendBatchAwareLinks(appendLink) {
         appendLink(getMergeQueueLink(), "queue", QUEUE_ICON_SVG);
     }
     appendLink(
-        batch ? getBatchActivityLogLink() : getEventLogLink(),
+        batch ? getBatchActivityLogLink() : getPullRequestActivityLogLink(),
         "logs",
         LOGS_ICON_SVG,
     );
 }
 
-export function getEventLogLink() {
-    const data = getPullRequestData();
-    return `https://dashboard.mergify.com/event-logs?login=${data.org}&repository=${data.repo}&pullRequestNumber=${data.pull}`;
-}
-
-// Activity log pivoted to a batch's own lifecycle events via its batch_pull
-// filter — a batch PR has no per-PR event log, so this replaces
-// getEventLogLink() on batch PRs. preset=Past1month widens the page's default
-// 1-hour window, which would render empty for any batch older than an hour
-// (a drained batch's post-mortem being the main use); same convention as the
+// Activity log scoped to the current repo and filtered by one PR-number
+// param. Targets /activity-log directly — the retired /event-logs URL only
+// survives as a redirect + param-translation shim for old bookmarks.
+// preset=Past1month widens the page's default 1-hour window, which would
+// render empty for events older than an hour; same convention as the
 // dashboard's own queue → activity-log deep link.
-export function getBatchActivityLogLink() {
+function getActivityLogLink(pullFilterName) {
     const data = getPullRequestData();
     const params = new URLSearchParams({
         login: data.org,
         repository: data.repo,
-        batch_pull: data.pull,
+        [pullFilterName]: data.pull,
         preset: "Past1month",
     });
     return `https://dashboard.mergify.com/activity-log?${params}`;
 }
 
+// Activity log filtered to the current PR's own events.
+export function getPullRequestActivityLogLink() {
+    return getActivityLogLink("pull_request");
+}
+
+// Activity log pivoted to a batch's lifecycle events via its batch_pull
+// filter — a batch PR has no per-PR event log, so this replaces
+// getPullRequestActivityLogLink() on batch PRs (a drained batch's post-mortem
+// being the main use).
+export function getBatchActivityLogLink() {
+    return getActivityLogLink("batch_pull");
+}
+
 // Base branch of the current PR, read from the classic PR UI. The
 // `.commit-ref.base-ref` span is titled "owner/repo:branch"; ref names can't
 // contain ":", so everything after the first colon is the branch (which may