fix: decouple repo/workflow cloning from S3 availability

[guzalv]

Summary

• The init container (hydrate.sh) exited early (exit 0) when S3 credentials were missing, which killed the entire script before reaching repository and workflow cloning logic further down.
• This meant custom workflows could not be loaded unless S3/MinIO was fully configured, even though workflow cloning has no dependency on S3.
• Replaces the early exit with a conditional block that wraps only the S3 hydration operations, allowing repo cloning, workflow cloning, and git state restore to proceed independently.
• Also guards the S3 repo-state restore section with an S3_PATH check so it only runs when S3 was successfully configured.

Changed files

File	Change
components/runners/state-sync/hydrate.sh	Replace exit 0 with if/else conditional around S3 operations; guard repo-state restore with S3_PATH check

Test plan

• Start a session without S3/MinIO configured — repos and workflows should still clone successfully
• Start a session with S3 configured — state hydration and repo-state restore should work as before
• Verify init container logs show "S3 not configured - skipping state hydration" when S3 is unavailable
• Verify init container does not attempt rclone commands when S3 credentials are missing

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📥 Commits

Reviewing files that changed from the base of the PR and between 070520c and 5eb9bee.

📒 Files selected for processing (1)

• components/runners/state-sync/hydrate.sh

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