ai: trigger redeploy to apply $$ escaping fix (PR #8) to litellm secrets

Comment-only change. Forces a real deploy of the ai stack now that
PR #8 (envparse.py $$ escaping) and PR #9 (deploy/ folder exclusion)
are both merged, so litellm picks up the correctly-escaped
LITELLM_MASTER_KEY/LITELLM_SALT_KEY instead of the truncated values
currently running (truncated at the first literal '$' due to the
envsubst+Compose double-interpolation bug fixed in #8).

ai/ai.yaml

@@ -3,6 +3,12 @@
 # from Woodpecker secrets (see PRs #4, #6, #7) -- not committed here.
 # MCPO_API_KEY (used by mcpo and mcpo-critical) is NOT yet migrated; it
 # remains manually managed in ai/ai.env by design (see PR #4 discussion).
+#
+# 2026-08-26: redeploy trigger following PR #8 ($$ double-interpolation
+# escaping fix) and PR #9 (deploy/ folder exclusion). This comment-only
+# change forces litellm/open-webui to pick up correctly-escaped secret
+# values -- LITELLM_MASTER_KEY/LITELLM_SALT_KEY were previously truncated
+# at their first literal '$' due to envsubst+Compose double interpolation.
 services:
   open-webui:
     image: ghcr.io/open-webui/open-webui:0.11.1