diff --git a/.github/workflows/actions.lock b/.github/workflows/actions.lock
new file mode 100644
index 0000000..ef1d66e
--- /dev/null
+++ b/.github/workflows/actions.lock
@@ -0,0 +1,172 @@
+# This file is machine-generated by `gh actions-lock`.
+# Do not edit by hand; run `gh actions-lock` to update.
+# Docs: https://gh.io/actions-lockfile
+version: 'v0.0.2'
+workflows:
+    '.github/workflows/boj-build.yml':
+        - 'actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332'
+    '.github/workflows/casket-pages.yml':
+        - 'actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7'
+        - 'actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd'
+        - 'actions/configure-pages@983d7736d9b0ae728b81ab479565c72886d7745b'
+        - 'actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e'
+        - 'actions/upload-pages-artifact@7b1f4a764d45c48632c6b24a0339c27f5614fb0b'
+        - 'haskell-actions/setup@f9150cb1d140e9a9271700670baa38991e6fa25c'
+    '.github/workflows/cflite_batch.yml':
+        - 'actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd'
+        - 'github/codeql-action@38697555549f1db7851b81482ff19f1fa5c4fedc'
+        - 'google/clusterfuzzlite@884713a6c30a92e5e8544c39945cd7cb630abcd1'
+    '.github/workflows/cflite_pr.yml':
+        - 'actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd'
+        - 'github/codeql-action@38697555549f1db7851b81482ff19f1fa5c4fedc'
+        - 'google/clusterfuzzlite@884713a6c30a92e5e8544c39945cd7cb630abcd1'
+    '.github/workflows/codeql.yml':
+        - 'actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd'
+        - 'github/codeql-action@c6f931105cb2c34c8f901cc885ba1e2e259cf745'
+    '.github/workflows/dogfood-gate.yml':
+        - 'actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5'
+        - 'hyperpolymath/deed-ecosystem@aa4b836bd969df2bc58128cb8e3d20bbc88d5e79'
+        - 'hyperpolymath/k9-ecosystem@89f3c2702f4f650a92aa7411502f38da06abd562'
+    '.github/workflows/hypatia-scan.yml':
+        - 'actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd'
+        - 'actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd'
+        - 'actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02'
+        - 'erlef/setup-beam@fc68ffb90438ef2936bbb3251622353b3dcb2f93'
+        - 'github/codeql-action@0d579ffd059c29b07949a3cce3983f0780820c98'
+    '.github/workflows/instant-sync.yml':
+        - 'peter-evans/repository-dispatch@28959ce8df70de7be546dd1250a005dd32156697'
+    '.github/workflows/mirror.yml':
+        - 'actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd'
+        - 'dtolnay/rust-toolchain@efa25f7f19611383d5b0ccf2d1c8914531636bf9'
+        - 'webfactory/ssh-agent@e83874834305fe9a4a2997156cb26c5de65a8555'
+    '.github/workflows/pages.yml':
+        - 'actions/checkout@11d5960a326750d5838078e36cf38b85af677262'
+        - 'actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e'
+        - 'actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa'
+    '.github/workflows/push-email-notify.yml':
+        - 'hyperpolymath/smtp-notify-action@ede1191ef6ff3ac02c4f4d9efdf837ee517e11d7'
+dependencies:
+    'actions/cache@668228422ae6a00e4ad889ee87cd7109ec5666a7':
+        ref: 'v5.0.4'
+        commit: 'sha1-668228422ae6a00e4ad889ee87cd7109ec5666a7'
+        owner_id: 44036562
+        repo_id: 215566462
+    'actions/checkout@11d5960a326750d5838078e36cf38b85af677262':
+        ref: 'v4.4.0'
+        commit: 'sha1-11d5960a326750d5838078e36cf38b85af677262'
+        owner_id: 44036562
+        repo_id: 197814629
+    'actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5':
+        ref: 'v4.3.1'
+        commit: 'sha1-34e114876b0b11c390a56381ad16ebd13914f8d5'
+        owner_id: 44036562
+        repo_id: 197814629
+    'actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332':
+        ref: 'v4.1.7'
+        commit: 'sha1-692973e3d937129bcbf40652eb9f2f61becf3332'
+        owner_id: 44036562
+        repo_id: 197814629
+    'actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd':
+        ref: 'v6.0.2'
+        commit: 'sha1-de0fac2e4500dabe0009e67214ff5f5447ce83dd'
+        owner_id: 44036562
+        repo_id: 197814629
+    'actions/configure-pages@983d7736d9b0ae728b81ab479565c72886d7745b':
+        ref: 'v5.0.0'
+        commit: 'sha1-983d7736d9b0ae728b81ab479565c72886d7745b'
+        owner_id: 44036562
+        repo_id: 513659658
+    'actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e':
+        ref: 'v4.0.5'
+        commit: 'sha1-d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e'
+        owner_id: 44036562
+        repo_id: 438112499
+    'actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd':
+        ref: 'v8.0.0'
+        commit: 'sha1-ed597411d8f924073f98dfc5c65a23a2325f34cd'
+        owner_id: 44036562
+        repo_id: 205262760
+    'actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02':
+        ref: 'v4.6.2'
+        commit: 'sha1-ea165f8d65b6e75b540449e92b4886f43607fa02'
+        owner_id: 44036562
+        repo_id: 192625955
+    'actions/upload-artifact@v4':
+        ref: 'v4'
+        commit: 'sha1-ea165f8d65b6e75b540449e92b4886f43607fa02'
+        owner_id: 44036562
+        repo_id: 192625955
+    'actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa':
+        ref: 'v3.0.1'
+        commit: 'sha1-56afc609e74202658d3ffba0e8f6dda462b719fa'
+        owner_id: 44036562
+        repo_id: 496012378
+        uses:
+            - 'actions/upload-artifact@v4'
+    'actions/upload-pages-artifact@7b1f4a764d45c48632c6b24a0339c27f5614fb0b':
+        ref: 'v4.0.0'
+        commit: 'sha1-7b1f4a764d45c48632c6b24a0339c27f5614fb0b'
+        owner_id: 44036562
+        repo_id: 496012378
+        uses:
+            - 'actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02'
+    'dtolnay/rust-toolchain@efa25f7f19611383d5b0ccf2d1c8914531636bf9':
+        ref: 'master'
+        commit: 'sha1-efa25f7f19611383d5b0ccf2d1c8914531636bf9'
+        owner_id: 1940490
+        repo_id: 260749683
+    'erlef/setup-beam@fc68ffb90438ef2936bbb3251622353b3dcb2f93':
+        ref: 'v1.24.0'
+        commit: 'sha1-fc68ffb90438ef2936bbb3251622353b3dcb2f93'
+        owner_id: 47606891
+        repo_id: 331103973
+    'github/codeql-action@0d579ffd059c29b07949a3cce3983f0780820c98':
+        ref: 'v4.32.6'
+        commit: 'sha1-0d579ffd059c29b07949a3cce3983f0780820c98'
+        owner_id: 9919
+        repo_id: 259445878
+    'github/codeql-action@38697555549f1db7851b81482ff19f1fa5c4fedc':
+        ref: 'v4.34.1'
+        commit: 'sha1-38697555549f1db7851b81482ff19f1fa5c4fedc'
+        owner_id: 9919
+        repo_id: 259445878
+    'github/codeql-action@c6f931105cb2c34c8f901cc885ba1e2e259cf745':
+        ref: 'v4.34.0'
+        commit: 'sha1-c6f931105cb2c34c8f901cc885ba1e2e259cf745'
+        owner_id: 9919
+        repo_id: 259445878
+    'google/clusterfuzzlite@884713a6c30a92e5e8544c39945cd7cb630abcd1':
+        ref: 'v1'
+        commit: 'sha1-884713a6c30a92e5e8544c39945cd7cb630abcd1'
+        owner_id: 1342004
+        repo_id: 400046858
+    'haskell-actions/setup@f9150cb1d140e9a9271700670baa38991e6fa25c':
+        ref: 'v2.10.3'
+        commit: 'sha1-f9150cb1d140e9a9271700670baa38991e6fa25c'
+        owner_id: 75048950
+        repo_id: 623796603
+    'hyperpolymath/deed-ecosystem@aa4b836bd969df2bc58128cb8e3d20bbc88d5e79':
+        ref: 'main'
+        commit: 'sha1-aa4b836bd969df2bc58128cb8e3d20bbc88d5e79'
+        owner_id: 6759885
+        repo_id: 1275649586
+    'hyperpolymath/k9-ecosystem@89f3c2702f4f650a92aa7411502f38da06abd562':
+        ref: 'main'
+        commit: 'sha1-89f3c2702f4f650a92aa7411502f38da06abd562'
+        owner_id: 6759885
+        repo_id: 1275650185
+    'hyperpolymath/smtp-notify-action@ede1191ef6ff3ac02c4f4d9efdf837ee517e11d7':
+        ref: 'v0.2.0'
+        commit: 'sha1-ede1191ef6ff3ac02c4f4d9efdf837ee517e11d7'
+        owner_id: 6759885
+        repo_id: 1352485172
+    'peter-evans/repository-dispatch@28959ce8df70de7be546dd1250a005dd32156697':
+        ref: 'v4.0.1'
+        commit: 'sha1-28959ce8df70de7be546dd1250a005dd32156697'
+        owner_id: 18365890
+        repo_id: 220359305
+    'webfactory/ssh-agent@e83874834305fe9a4a2997156cb26c5de65a8555':
+        ref: 'v0.10.0'
+        commit: 'sha1-e83874834305fe9a4a2997156cb26c5de65a8555'
+        owner_id: 135788
+        repo_id: 208510314
diff --git a/.github/workflows/boj-build.yml b/.github/workflows/boj-build.yml
index 1857846..e615b93 100644
--- a/.github/workflows/boj-build.yml
+++ b/.github/workflows/boj-build.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 # // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 # SPDX-License-Identifier: MPL-2.0
 name: BoJ Server Build Trigger
diff --git a/.github/workflows/casket-pages.yml b/.github/workflows/casket-pages.yml
index 1931ec5..d10edfe 100644
--- a/.github/workflows/casket-pages.yml
+++ b/.github/workflows/casket-pages.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 # // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 # SPDX-License-Identifier: MPL-2.0
 name: GitHub Pages
diff --git a/.github/workflows/cflite_batch.yml b/.github/workflows/cflite_batch.yml
index 04ce6b1..00318a2 100644
--- a/.github/workflows/cflite_batch.yml
+++ b/.github/workflows/cflite_batch.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 # // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 # SPDX-License-Identifier: MPL-2.0
 name: ClusterFuzzLite Batch
diff --git a/.github/workflows/cflite_pr.yml b/.github/workflows/cflite_pr.yml
index 9e457fd..5e13f8d 100644
--- a/.github/workflows/cflite_pr.yml
+++ b/.github/workflows/cflite_pr.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 # // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 # SPDX-License-Identifier: MPL-2.0
 name: ClusterFuzzLite PR
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 60d32e3..41aff70 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 # // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 # SPDX-License-Identifier: MPL-2.0
 name: CodeQL Security Analysis
diff --git a/.github/workflows/dogfood-gate.yml b/.github/workflows/dogfood-gate.yml
index 9948d9c..a8d9986 100644
--- a/.github/workflows/dogfood-gate.yml
+++ b/.github/workflows/dogfood-gate.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 # Copyright (c) 2026 Jonathan D.A. Jewell (hyperpolymath) <j.d.a.jewell@open.ac.uk>
 #
 # dogfood-gate.yml — Hyperpolymath Dogfooding Quality Gate
diff --git a/.github/workflows/governance.yml b/.github/workflows/governance.yml
index 0849576..f694815 100644
--- a/.github/workflows/governance.yml
+++ b/.github/workflows/governance.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 # // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 # SPDX-License-Identifier: MPL-2.0
 # governance.yml — single wrapper calling the shared estate governance bundle
diff --git a/.github/workflows/hypatia-scan.yml b/.github/workflows/hypatia-scan.yml
index 0e19a98..fba8274 100644
--- a/.github/workflows/hypatia-scan.yml
+++ b/.github/workflows/hypatia-scan.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 # // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 # SPDX-License-Identifier: MPL-2.0
 # Thin wrapper around hyperpolymath/standards hypatia-scan-reusable.yml.
diff --git a/.github/workflows/instant-sync.yml b/.github/workflows/instant-sync.yml
index cb1c54b..4ff9d25 100644
--- a/.github/workflows/instant-sync.yml
+++ b/.github/workflows/instant-sync.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 # // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 # SPDX-License-Identifier: MPL-2.0
 # Instant Forge Sync - Triggers propagation to all forges on push/release
diff --git a/.github/workflows/label-triage.yml b/.github/workflows/label-triage.yml
index 9886e92..fc79947 100644
--- a/.github/workflows/label-triage.yml
+++ b/.github/workflows/label-triage.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 name: Label Triage
 
 # Classify newly-filed issues against the estate label taxonomy.
diff --git a/.github/workflows/labels.yml b/.github/workflows/labels.yml
index c80b676..af34c6b 100644
--- a/.github/workflows/labels.yml
+++ b/.github/workflows/labels.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 name: Labels
 
 # Applies the canonical estate label set from .github/labels.json.
diff --git a/.github/workflows/mirror.yml b/.github/workflows/mirror.yml
index bca0066..7500820 100644
--- a/.github/workflows/mirror.yml
+++ b/.github/workflows/mirror.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 # // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 # SPDX-License-Identifier: MPL-2.0
 name: Mirror to Git Forges
diff --git a/.github/workflows/pages.yml b/.github/workflows/pages.yml
old mode 100755
new mode 100644
index 0273437..fb2b502
--- a/.github/workflows/pages.yml
+++ b/.github/workflows/pages.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 name: GitHub Pages (Ddraig SSG)
 on:
   push:
diff --git a/.github/workflows/push-email-notify.yml b/.github/workflows/push-email-notify.yml
index 0689291..80c6942 100644
--- a/.github/workflows/push-email-notify.yml
+++ b/.github/workflows/push-email-notify.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 # Dormant push-email notification. ARMED by setting the repo variable
 # PUSH_EMAIL_ENABLED=true (the single on/off switch). Addresses are pre-filled;
 # sending needs the org SMTP secrets (SMTP_HOST/PORT/USER/PASS). Inherited by
diff --git a/.github/workflows/rust-ci.yml b/.github/workflows/rust-ci.yml
index 1ac0892..8f4cc22 100644
--- a/.github/workflows/rust-ci.yml
+++ b/.github/workflows/rust-ci.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 # // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 # SPDX-License-Identifier: MPL-2.0
 # Rust CI — thin wrapper calling the shared estate reusable in
diff --git a/.github/workflows/scorecard.yml b/.github/workflows/scorecard.yml
index 64ac2ac..7b61058 100644
--- a/.github/workflows/scorecard.yml
+++ b/.github/workflows/scorecard.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 name: Scorecards supply-chain security
 
 on:
diff --git a/.github/workflows/secret-scanner.yml b/.github/workflows/secret-scanner.yml
index 437776e..d3f6bb1 100644
--- a/.github/workflows/secret-scanner.yml
+++ b/.github/workflows/secret-scanner.yml
@@ -1,4 +1,5 @@
 # SPDX-License-Identifier: MPL-2.0
+# This workflow is managed by gh actions-lock.
 # Calls the estate's shared secret scanner (gitleaks + rust-secrets +
 # shell-secrets). Replaces an inline trufflehog job: trufflehog was retired
 # estate-wide as redundant, and this repo had no other leak scanning, so the