The regex pattern in injectDockerComposeBuildArgs() was too restrictive
and failed to match `docker compose build servicename` commands. Changed
the lookahead from `(?=\s+(?:--|-)|\s+(?:&&|\|\||;|\|)|$)` to the
simpler `(?=\s|$)` to allow any content after the build command,
including service names with hyphens/underscores and flags.
Also improved the ApplicationDeploymentJob to use the new helper function
and added comprehensive test coverage for service-specific builds.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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