validate test-tags

Validates that all tags used in test files (Gherkin features) are defined in the tag contract.

This ensures tag filtering and test selection works correctly by preventing the use of undefined tags that would be silently ignored by godog.

The validation:

Usage: validate test-tags

Expected Output: Displays undefined tags with file locations (path:line).

Tags are validated against .eac/testing-tags.yml contract.

Exit code 0 if all tags defined, 1 if undefined tags found.

eac validate test-tags

What It Checks

Discovers all .feature files under the specs root.
Extracts all @ tags from features, scenarios, and example tables.
Checks each tag against the tag contract definitions.
Validates pattern tags with additional rules:
@skip:<reason> -- reason must be a defined skip reason.
@deps:<name> -- name must be a registered tool or OS platform (linux, macos, windows).
@env:<moniker> -- moniker must be a defined environment.
@depm:<module> -- module must be a defined module.

Undefined tag -- A tag is used but not defined in .eac/testing-tags.yml. Add the tag definition to the contract.
Invalid skip reason -- A @skip: tag uses a reason not listed in the contract's skip_reasons.
Invalid deps name -- A @deps: tag references a tool not in the tool registry.