fix: Combining lua folder and string should have line breaks

[michaeljguarino]

Causes syntax errors if last file doesn't end in newline

Test Plan

Test environment: https://console.plrldemo.onplural.sh/cd/clusters/31c95d8f-983c-435a-8985-bd1327f4334a/services/5486a614-6793-474d-92d6-4a338d10eace/components

Checklist

• I have added a meaningful title and summary to convey the impact of this PR to a user.
• I have deployed the agent to a test environment and verified that it works as expected.
  • Agent starts successfully.
  • Service creation works without any issues when using raw manifests and Helm templates.
  • Service creation works when resources contain both CRD and CRD instances.
  • Service templating works correctly.
  • Service errors are reported properly and visible in the UI.
  • Service updates are reflected properly in the cluster.
  • Service resync triggers immediately and works as expected.
  • Sync waves annotations are respected.
  • Sync phases annotations are respected. Phases are executed in the correct order.
  • Sync hook delete policies are respected. Resources are not recreated once they reach the desired state.
  • Service deletion works and cleanups resources properly.
  • Services can be recreated after deletion.
  • Service detachment works and keeps resources unaffected.
  • Services can be recreated after detachment.
  • Service component trees are working as expected.
  • Cluster health statuses are being updated.
  • Agent logs do not contain any errors (after running for at least 30 minutes).
  • There are no visible anomalies in Datadog (after running for at least 30 minutes).
• I have added tests to cover my changes.
• If required, I have updated the Plural documentation accordingly.

[greptile-apps]

Greptile Summary

This PR fixes a Lua syntax error that could occur when combining files from a Lua folder with an additional Lua script/file. The luaFolder helper already joins individual files with `"

", but the subsequent concatenation with luaStringhad no separator, meaning a missing trailing newline in the last folder file would run statements together illegally. The fix inserts"

"` at that join point, matching the existing inter-file separator pattern.

Confidence Score: 5/5

Safe to merge — single-line fix that correctly resolves the Lua concatenation issue.

The change is a minimal, well-scoped fix that mirrors the existing "

" separator already used inside luaFolder itself. No logic is altered beyond the join point, and trailing "

" when luaString is empty is harmless to the Lua runtime. No P0/P1 findings.

No files require special attention.

Important Files Changed

Filename	Overview
pkg/manifests/template/helm.go	Adds "\n\n" separator between luaFolder content and luaString to prevent Lua syntax errors when the last folder file lacks a trailing newline.

_{Reviews (1): Last reviewed commit: "fix: Combining lua folder and string sho..." | Re-trigger Greptile}