fix(cli): use separator-bounded matching for key pattern filters

[AndreyHirsa]

Summary

Fix key pattern matching to use separator-bounded comparison instead of substring prefix matching, preventing lockedKeys, ignoredKeys, preservedKeys, and localizableKeys from incorrectly matching unrelated keys that share a prefix.

Changes

• Replace key.startsWith(pattern) with exact match (key === pattern) plus separator-bounded prefix checks (key.startsWith(pattern + "."), key.startsWith(pattern + "/") and key.startsWith(pattern + "-")) in matchesKeyPattern.
• Add tests covering exact match, separator-bounded match, and no-match for non-separator prefixes (e.g., inbox vs inbox_url)

Testing

Business logic tests added:

• Exact key match
• No match for keys sharing prefix without separator
• Match for dot-separated children
• Match for slash-separated children
• Match for dash-separated children
• All existing tests pass
• E2E verified with JSON demo

Visuals

N/A - no UI changes.

Checklist

• Changeset added
• Tests cover business logic (not just happy path)
• No breaking changes

Summary by CodeRabbit

• Bug Fixes

  • Improved CLI key matching so keys match only on exact equality or when the pattern is followed by a separator (".", "/", or "-"), avoiding false positives from shared prefixes while preserving glob behavior.

• Tests

  • Expanded tests covering exact matches, separator-bounded matches, separator rejection cases, and existing glob patterns.

• Chores

  • Added a changelog entry documenting the patch.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

Configuration used: defaults

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between ddb8114 and 9195b8f.

📒 Files selected for processing (2)

• packages/cli/src/cli/utils/key-matching.spec.ts
• packages/cli/src/cli/utils/key-matching.ts

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📝 Walkthrough

Walkthrough

Switches CLI key matching from substring prefix matching to exact matches and separator-bounded prefixes (separators: ".", "/", "-"), while retaining glob-pattern support; adds tests and a changelog entry documenting the fix.

Changes

Cohort / File(s)	Summary
Key Matching Implementation & Tests packages/cli/src/cli/utils/key-matching.ts, packages/cli/src/cli/utils/key-matching.spec.ts	Replaced substring prefix logic with exact-match and separator-bounded prefix checks (supports ".", "/", "-"); preserved existing glob matching. Expanded tests for exact matches, rejection of non-separator-prefixed keys (e.g., inbox_url), and separator cases like inbox.title, inbox/details, heading-0.
Changelog Entry .changeset/flat-beans-wonder.md	Added patch release note describing the key matching behavior change for lingo.cli.

Estimated code review effort

🎯 3 (Moderate) | ⏱️ ~20 minutes

Poem

🐰 I nibbled through keys, precise and spry,
Dots, slashes, dashes now let true names fly.
Exactness hops in, no more stray confound—
A tidy match, and carrots all around! 🥕

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and specifically summarizes the main change: switching from prefix matching to separator-bounded matching for key pattern filters in the CLI.
Description check	✅ Passed	The description covers all required sections: Summary explains the fix, Changes detail the implementation, Testing lists all test cases, Visuals correctly notes N/A, and Checklist confirms all items are complete.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

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✨ Finishing Touches

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• Create PR with unit tests
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• Commit unit tests in branch fix/exact-key-matching

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