fix: improve native deploy error messages and escape commas in helm values

[vigneshrajsb]

Summary

• Human-readable statusMessage: Replace raw log dumps in deploys.statusMessage with short, actionable messages. Non-timeout failures point to Console > Deploy tab; timeout failures point to Console > Pods.
• Comma escaping: Escape commas in helm --set values (\,) to fix parsing failures when env vars contain comma-separated URLs (e.g. AUTH_JWK_URI).
• Timeout clarity: When helm upgrade times out due to unhealthy pods, surface a clear message instead of the generic "timed out waiting for the condition".

Test plan

• Lint passes
• Tests pass
• Deploy a service with comma-separated env var values and verify helm upgrade succeeds
• Trigger a deploy timeout and verify statusMessage shows pod health guidance
• Trigger a non-timeout deploy failure and verify statusMessage points to Deploy tab