Refresh roadmap after Helpdesk validation

docs/redmineup_local_fork_changelog.md

@@ -25,11 +25,36 @@ environment. Before risky edits, archive the current plugin directories in
     LAN Redmine copy.
   - Short alias/usage routes were added to avoid noisy routing errors during
     manual browser testing.
-  - Full end-to-end helpdesk outbox validation is still pending.
+  - Helpdesk mail import, Helpdesk metadata lookup, default non-email updates,
+    and explicit outbound Helpdesk replies are live-smoke-tested through redMCP.
+  - Helpdesk outbox/worker validation is still pending.
 - Next meaningful milestone:
-  - Build the external worker/indexer that consumes `event_outbox_events`,
-    enriches via read-only MySQL joins, and emits deterministic ticket/message
-    documents for external indexing.
+  - Validate `redmine_outbox_worker.py` end to end against controlled Helpdesk
+    activity, document the derived JSONL shape, then choose the external index
+    target.
+
+## 2026-04-24 - Helpdesk/redMCP Smoke Validation
+
+- Touched areas:
+  - `redMCP`
+  - Helpdesk test tooling
+- Purpose:
+  - Prove the LAN test instance can import a Helpdesk email, expose its
+    Helpdesk metadata through redMCP, update a non-Helpdesk control issue, send
+    an explicit Helpdesk reply, and verify outbound delivery through Mailpit.
+  - Make customer-visible Helpdesk email opt-in in redMCP.
+- Behavior clarified:
+  - `RedMCP\RedmineClient::updateIssue()` uses the normal Redmine REST API and
+    does not send a Helpdesk email by default.
+  - `updateIssue(..., ['send_helpdesk_email' => true])` and
+    `sendHelpdeskIssueResponse()` deliberately use the Helpdesk email path.
+- LAN test result:
+  - `./helpdesk_smoke_test.py` passed against `fud-helpdesk` and
+    `fud-nohelpdesk`.
+  - The smoke test verifies that a default issue update does not send Mailpit
+    mail, while an explicit Helpdesk response does.
+  - Latest documented passing run created and closed controlled Helpdesk issue
+    `#39871`.
 
 ## 2026-04-24 - POP3 Get Mail Compatibility Fix