Release 1.0.5

[firestar300]

Release 1.0.5

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Note

Low Risk
Changes are mostly versioning, docs, and dev tooling; the only front-end behavior change is a narrow pass-through fix in render_block when inputs are empty.

Overview
Release 1.0.5 bumps plugin metadata and version constants to 1.0.5, renames the plugin to Blockparty Table of content, and documents the release in CHANGELOG.md.

Runtime fix: render_block now returns the original $block_content when $block_content or $block is empty, instead of forcing an empty string—addressing broken output when block parameters are empty.

Distribution & demo: Adds a WordPress Playground blueprint (.wordpress.org/blueprints/blueprint.json) that installs tag 1.0.5, logs in, and seeds a demo page with the TOC block and sample headings.

Tooling: Composer dev dependencies are trimmed (Psalm, phplint, phpcompatibility-wp removed; wp-cli and explicit PHPCS added), composer.lock is removed from the repo and added to .gitignore, and GrumPHP no longer runs Psalm. CI YAML only fixes indentation for node-version-file.

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