Register Gitea webhook 14 for oikos-console deploy

Created via the Gitea API (POST /repos/dtoro/Homelab-Docs/hooks) rather
than the UI, since the existing PAT turned out to have sufficient scope.
Webhook id 14: http://192.168.8.205:9831/deploy, push events, main branch
filter, active.

The shared secret was generated and registered with Gitea before the
apps-side bootstrap ran (order reversed from the usual install.sh-first
flow, since direct SSH deploy to apps is still pending operator
execution — see oikos/console/deploy/README.md). Stored as
secrets/oikos-console-deploy-secret.yaml (SOPS, recipient: apps only)
rather than left as a local plaintext file, with explicit operator
sign-off. When the apps-side install runs, skip webhook/install.sh's
random-secret generation and write this exact value into
/etc/oikos-console-deploy/secret instead.

infrastructure/auto-deploy.md updated with the real webhook id (was
"not yet registered").

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.sops.yaml

@@ -123,4 +123,14 @@ creation_rules:
     age: >-
       age1xkklkvnk5z0fsnh6cfgv70hy9ksfy8rdprwerzw4yk3p4p7cxcqs2yvpz6,
       age1duyl8mkpgu80uv934dy8q7enqjms6yvdz264hme8uryuxmvvqesq6rusq0
+
+  - path_regex: ^secrets/oikos-console-deploy-secret\.yaml$
+    # Shared HMAC secret for the Gitea deploy webhook (id 14) ->
+    # oikos-console-deploy.service on apps (105). Generated + registered
+    # with Gitea before the apps-side install ran (see
+    # oikos/console/deploy/README.md "Status") — write this exact value
+    # into /etc/oikos-console-deploy/secret rather than letting
+    # webhook/install.sh generate a fresh one.
+    age: >-
+      age1duyl8mkpgu80uv934dy8q7enqjms6yvdz264hme8uryuxmvvqesq6rusq0
 # webhook noop 2026-05-20T18:16:57+02:00