Release/1.0.1

[jeffpaul]

What?

Prepares 1.0.1 release.

Closes #624.

Copilot summary

This pull request prepares the codebase for the 1.0.1 release of the AI plugin, updating version numbers, changelogs, and documentation. It also includes several documentation improvements, new helper functions, and a number of bug fixes and enhancements to existing features.

Release and Documentation Updates:

• Bumped plugin version to 1.0.1 in ai.php, readme.txt, and updated the WPAI_VERSION constant. [1] [2] [3]
• Added a new 1.0.1 release section in CHANGELOG.md with detailed lists of added features, changes, removals, fixes, and developer notes, and linked the new release in the changelog footer. [1] [2]
• Updated @since tags in PHPDoc comments to reflect the new version for all new or changed functions and methods. [1] [2] [3] [4] [5] [6] [7] [8]
• Added new contributors to CREDITS.md.

New Features and Enhancements:

• Introduced new helper functions for determining if AI Connector credentials are valid and if features are enabled globally or individually.
• Improved handling and filtering of guidelines and connector authentication, and updated various UI and experiment behaviors.

Bug Fixes:

• Fixed issues with connector configuration detection, UI focus loss, dashboard widget display, and experiment notices.

These changes collectively ensure the plugin is ready for the 1.0.1 release, with improved stability, usability, and documentation.

Why?

How?

Use of AI Tools

Besides copilot summary in this PR description, remaining work is human-grade only.

Testing Instructions

Screenshots or screencast

Before	After

Changelog Entry

n/a

[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>

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

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.45%. Comparing base (838d798) to head (e6a370e).

Additional details and impacted files

@@            Coverage Diff             @@
##             develop     #629   +/-   ##
==========================================
  Coverage      74.45%   74.45%           
  Complexity      1740     1740           
==========================================
  Files             85       85           
  Lines           7521     7521           
==========================================
  Hits            5600     5600           
  Misses          1921     1921           

Flag	Coverage Δ
unit	74.45% <ø> (ø)

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