docs(issues): add specs for shutdown SI-17, SI-23, and SI-24

docs/issues/drafts/1488-si-18-deprecate-legacy-shutdown-api/ISSUE.md

@@ -9,7 +9,7 @@ github-issue: null
 spec-path: docs/issues/drafts/1488-si-18-deprecate-legacy-shutdown-api/ISSUE.md
 branch: "{issue-number}-deprecate-legacy-shutdown-api"
 related-pr: null
-last-updated-utc: "2026-10-02 11:12"
+last-updated-utc: "2026-10-06 11:34"
 semantic-links:
   skill-links:
     - create-issue
@@ -31,7 +31,7 @@ semantic-links:
 
 # Draft SI-18 — Deprecate Legacy Shutdown API
 
-> **EPIC position**: Roadmap step 15. Compatibility-preserving deprecation after
+> **EPIC position**: Roadmap step 17. Compatibility-preserving deprecation after
 > every supported in-workspace and standalone consumer uses token lifecycle APIs.
 
 ## Goal
@@ -54,6 +54,8 @@ Do not start this work until the following evidence is recorded:
       components use token-aware lifecycle paths.
 - [ ] Standalone HTTP and UDP environments/examples use token-aware lifecycle
       paths.
+- [ ] REST API and health-check API test environments use token-aware
+      lifecycle paths (SI-23, SI-24).
 - [ ] The task inventory confirms no supported in-workspace consumer depends on
       the legacy shutdown path.
 - [ ] The external `torrust-server-lib` release notes identify external consumer
@@ -112,7 +114,8 @@ Do not start this work until the following evidence is recorded:
 
 ## Dependencies
 
-- SI-11 through SI-17 are complete for the HTTP, REST, health-check, UDP, and
+- SI-11 through SI-17, SI-23, and SI-24 are complete for the HTTP, REST,
+  health-check, UDP, and
   standalone migrations.
 - SI-2's additive server lifecycle API is released and documented.
 - #1588 revalidates the final supported-consumer inventory.

docs/issues/drafts/1488-si-19-remove-legacy-shutdown-api/ISSUE.md

@@ -9,7 +9,7 @@ github-issue: null
 spec-path: docs/issues/drafts/1488-si-19-remove-legacy-shutdown-api/ISSUE.md
 branch: "{issue-number}-remove-legacy-shutdown-api"
 related-pr: null
-last-updated-utc: "2026-10-02 11:12"
+last-updated-utc: "2026-10-06 11:34"
 semantic-links:
   skill-links:
     - create-issue
@@ -33,7 +33,7 @@ semantic-links:
 
 # Draft SI-19 — Remove Legacy Shutdown API and Library OS Signals
 
-> **EPIC position**: Roadmap step 16. Breaking removal after all declared
+> **EPIC position**: Roadmap step 18. Breaking removal after all declared
 > compatibility, migration, deprecation, and release gates have been satisfied.
 
 ## Goal
@@ -56,6 +56,8 @@ Do not start implementation until every item below is complete and linked from
       components use only token-aware shutdown paths.
 - [ ] Standalone HTTP and UDP environments/examples use only token-aware
       shutdown paths.
+- [ ] REST API and health-check API test environments use only token-aware
+      shutdown paths (SI-23, SI-24).
 - [ ] #1588 revalidates the final task inventory and records no supported
       in-workspace legacy shutdown consumer.
 - [ ] `torrust-server-lib` release notes confirm the planned breaking release
@@ -135,7 +137,7 @@ Do not start implementation until every item below is complete and linked from
 ## Dependencies
 
 - SI-18 is complete and the declared external compatibility window has ended.
-- SI-11 through SI-17 token-lifecycle migrations are complete.
+- SI-11 through SI-17, SI-23, and SI-24 token-lifecycle migrations are complete.
 - #1588 completes final inventory evidence.
 - Q4 is resolved. Q5's process-wrapper verification rule is required for final
   end-to-end removal verification.

docs/issues/drafts/1488-si-3-fix-environment-stop/ISSUE.md

@@ -9,7 +9,7 @@ github-issue: null
 spec-path: docs/issues/drafts/1488-si-3-fix-environment-stop/ISSUE.md
 branch: "1488-si-3-fix-environment-stop"
 related-pr: null
-last-updated-utc: "2026-10-06 09:36"
+last-updated-utc: "2026-10-06 11:41"
 semantic-links:
   skill-links:
     - create-issue
@@ -27,7 +27,7 @@ semantic-links:
 # Superseded Draft SI-3 — Split Standalone Environment Migration
 
 > **Status**: Superseded for implementation planning. [SI-16](../../closed/2412-1488-si-16-migrate-standalone-http-environment/ISSUE.md)
-> replaces the standalone HTTP environment/example and [SI-17](../1488-si-17-migrate-standalone-udp-environment/ISSUE.md)
+> replaces the standalone HTTP environment/example and [SI-17](../../open/2448-1488-si-17-migrate-standalone-udp-environment/ISSUE.md)
 > replaces the standalone UDP environment/example, after the additive server
 > lifecycle API is available.
 >

docs/issues/drafts/1488-si-3-fix-environment-stop/verification.md

@@ -1,7 +1,7 @@
 # Verification Evidence — Superseded Combined Standalone Migration
 
 > **Status**: Do not populate. [SI-16](../../closed/2412-1488-si-16-migrate-standalone-http-environment/manual-verification-evidence.md)
-> and [SI-17](../1488-si-17-migrate-standalone-udp-environment/verification.md)
+> and [SI-17](../../open/2448-1488-si-17-migrate-standalone-udp-environment/ISSUE.md)
 > require separate verification evidence for the HTTP and UDP consumers,
 > respectively.