Add Experiments and Credentials row actions to plugin list

[theaminulai]

What?

Updates the AI Experiments plugin row actions on the WordPress Installed Plugins screen by:

• Renaming the "Settings" link to "Experiments"
• Adding a new "Credentials" link for quick access to AI provider credentials

Why?

The previous generic "Settings" label didn't clearly communicate what users would configure. Users frequently need to manage both experiments and credentials, but previously had to navigate through multiple admin screens to reach the credentials page. This change:

• Improves discoverability of the plugin's two primary configuration surfaces
• Reduces friction for users managing API credentials
• Uses clearer, more descriptive labels that align with how users think about the plugin's functionality

How?

Modified the plugin_action_links() function in includes/bootstrap.php to:

• Rename the existing link from "Settings" to "Experiments" (still pointing to options-general.php?page=ai-experiments)
• Add a new "Credentials" link pointing to the AI Client settings page (options-general.php?page=wp-ai-client)
• Both links are added via array_unshift() so they appear first in the row actions

Testing Instructions

1. Navigate to Plugins → Installed Plugins in WP Admin
2. Locate the AI Experiments plugin in the list
3. Verify two new row action links appear: Experiments and Credentials
4. Click Experiments and confirm it navigates to the AI Experiments settings page
5. Return to the plugins list and click Credentials to verify it navigates to the AI Credentials Settings page
6. Confirm both links function correctly and pages load as expected

Closes #205

[github-actions]

The following accounts have interacted with this PR and/or linked issues. I will continue to update these lists as activity occurs. You can also manually ask me to refresh this list by adding the props-bot label.

If you're merging code through a pull request on GitHub, copy and paste the following into the bottom of the merge commit message.

Co-authored-by: jeffpaul <jeffpaul@git.wordpress.org>
Co-authored-by: dkotter <dkotter@git.wordpress.org>
Co-authored-by: theaminulai <theaminuldev@git.wordpress.org>

To understand the WordPress project's expectations around crediting contributors, please review the Contributor Attribution page in the Core Handbook.

[Copilot]

Pull request overview

This PR improves the plugin row action links on the WordPress Installed Plugins screen to provide clearer navigation to the AI Experiments plugin's configuration pages.

Changes:

• Renamed the generic "Settings" link to "Experiments" for better clarity about what can be configured
• Added a new "Credentials" link for direct access to AI provider credentials management
• Updated the documentation comment to reflect both links

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 50.80%. Comparing base (fd0d510) to head (7726dc0).
⚠️ Report is 49 commits behind head on develop.

Files with missing lines	Patch %	Lines
includes/bootstrap.php	0.00%	7 Missing ⚠️

Additional details and impacted files

@@              Coverage Diff              @@
##             develop     #206      +/-   ##
=============================================
+ Coverage      50.33%   50.80%   +0.47%     
- Complexity       366      375       +9     
=============================================
  Files             26       27       +1     
  Lines           1951     1978      +27     
=============================================
+ Hits             982     1005      +23     
- Misses           969      973       +4     

Flag	Coverage Δ
unit	50.80% <0.00%> (+0.47%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[jeffpaul]

Tested via Playground, links look and work as expected