fix(helm): appVersion points at a real GHCR tag (v0.7.44)

The kind install job caught this on its first full run: the default image
tag (Chart.AppVersion 0.6.73) returns 404 on GHCR for all three images —
the registry's tags are v-prefixed — so an unpinned default install could
never pull. Updated appVersion to v0.7.44 (verified 200 for simstudio,
realtime, and migrations manifests), stale values comment refreshed, and
an upgrade note added. The CI kind values deliberately stay tag-free so
the job keeps exercising the true default path.

Author: waleedlatif1

helm/sim/Chart.yaml

@@ -3,7 +3,7 @@ name: sim
 description: A Helm chart for Sim - the open-source AI workspace where teams build, deploy, and manage AI agents
 type: application
 version: 1.2.0
-appVersion: "0.6.73"
+appVersion: "v0.7.44"
 kubeVersion: ">=1.25.0-0"
 home: https://sim.ai
 icon: https://raw.githubusercontent.com/simstudioai/sim/main/apps/sim/public/logo/primary/primary.svg

helm/sim/README.md

@@ -469,6 +469,7 @@ kubectl --namespace sim logs deploy/sim-app -c migrations
 
 ## Upgrading to 1.2.0
 
+* `appVersion` (the default image tag when `image.tag` is unset) is now `v0.7.44` — the previous `0.6.73` referenced a tag that does not exist on GHCR, so an unpinned default install could not pull images. Production installs should still pin `image.tag` explicitly.
 * `externalSecrets.apiVersion` now defaults to `"v1"` — current External Secrets Operator releases no longer serve `v1beta1` (removed upstream in 2026). Set `externalSecrets.apiVersion: "v1beta1"` only if you still run ESO < 0.17.
 * `values.schema.json` now declares every top-level key and rejects unknown top-level keys, so a typo like `networkPolciy:` fails fast at install time instead of being silently ignored. If an upgrade suddenly fails schema validation, check your values file for stray top-level keys.
 * The opt-in telemetry collector no longer ships a Prometheus scrape config for the app/realtime services (they expose no `/metrics` endpoint); OTLP ingestion is unchanged.

helm/sim/values.yaml

@@ -20,7 +20,7 @@ app:
   # Image configuration
   image:
     repository: simstudioai/simstudio
-    # tag defaults to Chart.AppVersion. Override with a release tag (e.g. "0.6.73") or pin via image.digest.
+    # tag defaults to Chart.AppVersion. Override with a release tag (e.g. "v0.7.44") or pin via image.digest.
     tag: ""
     # Optional image digest pin: "sha256:..." — when set, overrides tag.
     digest: ""