Probe Connectors under its hosted base path

[b10x-bot]

Summary

• align Connectors readiness/liveness probes with its configured /api/connectors/v1 router mount
• assert both composed paths in chart rollout checks
• release the chart contract as 0.4.6

Validation

• live deployment evidence: root health routes return 404; base-path routes return 200
• version consistency, Helm lint, chart rollout assertions
• Cargo format and locked workspace check
• Kubernetes server-side dry-run with deployment values