ci,chore: add codespell support with configuration and fixes

[yarikoptic]

Since just 1 minor typo fixed - feel free to ignore or cherrypick etc... just my way to say "thanks" for a nice tool is by making world free of typos ;)

Add codespell configuration and fix existing typo.

More about codespell: https://github.com/codespell-project/codespell

I personally introduced it to over a hundred of projects already mostly with a positive feedback
(see the "improveit-dashboard").

CI workflow has 'permissions' set only to 'read' so also should be safe.

Changes

Configuration & Infrastructure

• Added .codespellrc with skip patterns for fixtures, SVGs, CSS, lock files
• Created GitHub Actions workflow to check spelling on push and PRs to master

Domain-Specific Whitelist

Added legitimate terms that codespell flags as typos:

• afterall - JS test framework function (afterAll)
• inout - SQL keyword (INOUT)
• acter - part of CHAR(?:ACTER|SET)? regex pattern for SQL keywords

Typo Fixes

Non-ambiguous typo fixed (1 fix):

• programing -> programming (apps/jscpd/README.md)

Historical Context

This project has had 39 prior commits fixing typos manually, demonstrating the value of automated spell-checking.

Testing

Codespell passes with zero errors after all fixes.

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Generated with Claude Code and love to typos free code

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This change is 

Summary by CodeRabbit

• Documentation

  • Fixed spelling error in project documentation.

• Chores

  • Added automated spell-checking configuration and GitHub Actions workflow to maintain code quality across the repository.

[coderabbitai]

Walkthrough

A .codespellrc configuration file and corresponding GitHub Actions workflow are added to enable automated spell checking on the repository. The workflow runs on push and pull request events to the master branch. A documentation typo in the README is corrected.

Changes

Cohort / File(s)	Summary
Codespell Configuration .codespellrc	New configuration file specifying paths to skip during spell checking (VCS directories, SVG/CSS assets, lock files, fixtures), enabling hidden file scanning, and defining an ignore list for false-positive terms (afterall, inout, acter).
CI/CD Workflow .github/workflows/codespell.yml	New GitHub Actions workflow that runs codespell on push and pull request events targeting the master branch, using the codespell-project/actions-codespell action with configuration from .codespellrc.
Documentation apps/jscpd/README.md	Fixed spelling error in the Features section, correcting "programing" to "programming".

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

Poem

🐰 A spell-check arrives to catch our flaws,
With .codespellrc and GitHub's cause,
"Programming" now spelled just right,
Our code and words both clean and bright! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Title check	✅ Passed	The title clearly summarizes the main changes: adding codespell integration (CI setup, configuration file) and fixing a typo, which aligns with the actual changeset.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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