Fix backend-tests find path for plugin test discovery

[JohnMcLear]

plugins i --path installs to src/plugin_packages/, not node_modules/. Update the find command to look in the correct location so backend tests are actually discovered and run.

[qodo-free-for-open-source-projects]

Review Summary by Qodo

Fix backend test discovery path for plugins

🐞 Bug fix

Walkthroughs

Description

• Fix backend test discovery path in CI workflow
• Update find command to search in src/plugin_packages/
• Correct plugin installation location reference

Diagram

flowchart LR
  A["Plugin Installation<br/>src/plugin_packages/"] -- "find command" --> B["Backend Test Discovery<br/>Updated Path"]
  C["Old Path<br/>node_modules/"] -.->|incorrect| B

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File Changes

1. bin/plugins/lib/backend-tests.yml 🐞 Bug fix +1/-1

Update find path for plugin test discovery

• Updated find command search path from ../node_modules/ to ./src/plugin_packages/
• Corrects plugin test discovery to match actual installation location
• Ensures backend tests are properly discovered and executed in CI

bin/plugins/lib/backend-tests.yml

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[qodo-free-for-open-source-projects]

Code Review by Qodo

🐞 Bugs (0) 📘 Rule violations (1) 📎 Requirement gaps (0)

1. find path fix untested 📘 Rule violation ⛯ Reliability

Description

This PR fixes backend test discovery by changing the plugin search path, but it does not add any
regression test that would fail if the change were reverted. Without a regression test, the same CI
discovery bug could be reintroduced without detection.

Code

bin/plugins/lib/backend-tests.yml[65]

+          res=$(find . -path "./src/plugin_packages/ep_*/static/tests/backend/specs/**" | wc -l)

Evidence

The checklist requires a regression test for bug fixes (PR Compliance ID 1). The only change in this
PR is the workflow find path update in backend-tests.yml, and no test additions/changes are
present in the provided diff.

bin/plugins/lib/backend-tests.yml[65-65]
Best Practice: Repository guidelines

Agent prompt

The issue below was found during a code review. Follow the provided context and guidance below and implement a solution

## Issue description
The PR fixes backend test discovery in CI, but does not add a regression test that would fail if the fix were reverted.

## Issue Context
This change adjusts where plugins are searched for backend tests (`src/plugin_packages` instead of `node_modules`). A regression test should validate that backend tests are discovered from the intended install location so the bug cannot silently return.

## Fix Focus Areas
- bin/plugins/lib/backend-tests.yml[65-65]

ⓘ Copy this prompt and use it to remediate the issue with your preferred AI generation tools

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[qodo-free-for-open-source-projects]

1. find path fix untested 📘 Rule violation ⛯ Reliability

This PR fixes backend test discovery by changing the plugin search path, but it does not add any
regression test that would fail if the change were reverted. Without a regression test, the same CI
discovery bug could be reintroduced without detection.

Agent Prompt

## Issue description
The PR fixes backend test discovery in CI, but does not add a regression test that would fail if the fix were reverted.

## Issue Context
This change adjusts where plugins are searched for backend tests (`src/plugin_packages` instead of `node_modules`). A regression test should validate that backend tests are discovered from the intended install location so the bug cannot silently return.

## Fix Focus Areas
- bin/plugins/lib/backend-tests.yml[65-65]

ⓘ Copy this prompt and use it to remediate the issue with your preferred AI generation tools