fix(guacamole): add --- separator between macmini-vnc-creds OnePasswordItem and guacamole-branding ConfigMap

Missing document separator caused YAML to merge the OnePasswordItem's
top-level `spec: itemPath:` block into the ConfigMap that follows.
Result: a ConfigMap with a `.spec` field whose K8s schema does not
declare one, triggering ArgoCD's structured-merge diff to fail since
2026-05-11T15:30:54Z:

  Failed to compare desired state to live state: failed to calculate
  diff: error calculating structured merge diff: error building typed
  value from config resource: .spec: field not declared in schema

App stayed Healthy (live K8s tolerated the extra field — ConfigMap
ignored it) but ArgoCD's diff calc was broken, leaving the app stuck at
sync=Unknown for all 21 resources. Adding the missing `---` separator
makes the OnePasswordItem and ConfigMap proper sibling YAML documents,
each with its own kind-correct schema.

Diagnosed during 2026-05-12 morning routine.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

apps/guacamole/guacamole.yaml

@@ -466,11 +466,11 @@ spec:
   itemPath: vaults/IAmWorkin/items/Guacamole JSON Auth
 ---
 ---
-# 1Password-backed credentials for Mac mini VNC access (Phase 1 — 2026-04-28)
+# 1Password-backed credentials for Mac mini VNC access (Phase 1 <EFBFBD> 2026-04-28)
 # The operator mints Secret 'macmini-vnc-creds' with keys: username, password, VNC Password
 # Note: '1Password' field label 'VNC Password' -> K8s Secret key 'VNC Password' (space retained)
 # Guacamole VNC connection password is sourced from the 'VNC Password' field.
-# Actual IP is 10.0.56.115 (INFRA VLAN) — the 1P item 'IP' field is kept as backup reference.
+# Actual IP is 10.0.56.115 (INFRA VLAN) <EFBFBD> the 1P item 'IP' field is kept as backup reference.
 apiVersion: onepassword.com/v1
 kind: OnePasswordItem
 metadata:
@@ -481,6 +481,7 @@ metadata:
     app.kubernetes.io/part-of: flowercore
 spec:
   itemPath: vaults/IAmWorkin/items/Mac Mini
+---
 # Blue Jay Branding Extension (CSS + translations)
 apiVersion: v1
 kind: ConfigMap