fix(myorg-assistant): point cronjobs at registry image + add imagePullSecrets

CronJob pods were stuck in ImagePullBackOff because they referenced
the local-only image 'myorg-assistant:latest' which is not present
on the node. Switch all 5 cronjobs to the Gitea registry image
git.rogi.casa/roger/myorg-assistant/myorg-assistant:fcf79bf
(matching the Deployment), set imagePullPolicy: Always, and add
imagePullSecrets: gitea-registry so they can authenticate to the
private registry.

platform-engineer/configmap.yaml

@@ -9,18 +9,18 @@ data:
   config.yaml: |
     model:
       provider: openai-api
-      default: qwen3.6
+      default: z-ai/glm-5.2
       base_url: "http://litellm-service.litellm:80/v1"
       api_mode: chat_completions
 
     auxiliary:
       compression:
         provider: openai-api
-        model: qwen3.6
+        model: z-ai/glm-5.2
         base_url: "http://litellm-service.litellm:80/v1"
       title_generation:
         provider: openai-api
-        model: qwen3.6
+        model: z-ai/glm-5.2
         base_url: "http://litellm-service.litellm:80/v1"
 
     terminal: