Add CLI tests for scaffold unittest + update docs for v0.4.0

[Copilot]

This pull request introduces a major new feature to DevOps-OS: a comprehensive unit test scaffolding command that supports multiple languages and frameworks. It adds a new devopsos scaffold unittest CLI subcommand, updates documentation and help output, and expands test coverage to ensure the new functionality is robust and discoverable.

Key changes:

New Feature: Unit Test Scaffold

• Added the scaffold unittest subcommand to the CLI (devopsos scaffold unittest), which generates unit testing configuration files and sample test stubs for Python (pytest), JavaScript/TypeScript (Jest, Mocha, Vitest), and Go (go test), including coverage configuration and multi-language support. [1] [2]
• Introduced the cli/scaffold_unittest.py implementation and integrated it into the main CLI application.

Documentation and Help Updates

• Updated README.md to document the new unit test scaffold feature, including usage examples, supported languages, and new output files. [1] [2] [3] [4] [5] [6]
• Added a new section to docs/CLI-COMMANDS-REFERENCE.md for the unittest command and linked it from the main documentation. [1] [2]

Versioning and Changelog

• Bumped the project version to 0.4.0 in all relevant locations and updated the changelog to reflect the new feature. [1] [2] [3] [4]

Test Coverage and Quality

• Increased the number of CLI and overall tests to cover the new feature, with all tests passing. [1] [2]
• Updated CLI help and test assertions to include the new unittest subcommand, ensuring discoverability and regression coverage. [1] [2]

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These changes make it much easier for users to scaffold unit testing infrastructure for multiple stacks, improving developer experience and project quality.Adds integration tests for the devopsos scaffold unittest command introduced in v0.4.0, updates existing subcommand lists to include it, and brings all user-facing documentation in sync.

Test changes (cli/test_cli.py)

• Updated test_scaffold_help_shows_all_subcommands (7 → 8 subcommands) and test_scaffold_no_opts_shows_help / test_scaffold_help_lists_new_targets to include unittest
• 9 new end-to-end subprocess tests covering every supported stack and flag:

Test	Validates
test_scaffold_unittest_help_shows_native_options	All options + language keywords in --help
test_scaffold_unittest_via_cli_python	pytest.ini, conftest.py, tests/test_sample.py, tests/__init__.py created; coverage on by default
test_scaffold_unittest_via_cli_javascript_jest	jest.config.js + sample.test.js with correct content
test_scaffold_unittest_via_cli_typescript_vitest	vitest.config.js + sample.test.ts
test_scaffold_unittest_via_cli_javascript_mocha	.mocharc.js + sample.test.js
test_scaffold_unittest_via_cli_go	*_test.go (table-driven) + Makefile.test
test_scaffold_unittest_via_cli_multi_language	All three stacks in one invocation
test_scaffold_unittest_no_coverage_flag	--no-coverage strips --cov= from pytest.ini
test_scaffold_unittest_via_cli_matches_direct_module_output	CLI and direct module produce identical output

Documentation changes

README.md — version badge 0.2.0 → 0.4.0; added Unit Test Scaffold to features table; added scaffold unittest to section 4 and quick-start commands block; updated test count (162 → 260); added doc table entry for unit test scaffold.

docs/DEVOPS-OS-QUICKSTART.md — new Unit Test Scaffold section (Python / JS / TS / Go / multi-stack examples + options table); added to ToC; extended Common Options comparison table; added --help line to Troubleshooting.

hugo-docs/content/docs/reference/_index.md — added scaffold cicd and scaffold unittest to Command Overview table; added full scaffold unittest option table; updated scaffold targets list.

hugo-docs/content/docs/getting-started/_index.md — added Unit Testing row to What-is table; added step 6 (unit test scaffold); added cicd and unittest to scaffold cheat-sheet; renumbered AI step to 8.

Original prompt

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This section details on the original issue you should resolve

<issue_title>[Feature]: Add unit testing automation templates</issue_title>
<issue_description></issue_description>

<agent_instructions>As part DevOps process first automation, let’s add test automation template scaffolding in the project. Based on tech stack selection add unit testing automation. Analyse this request and create plan to implement.

Lets start with js frameworks, python and go unit testing features templates

Analyse and List down tasks then implement one by one.

Make sure to update all the documentation sections without disturbing other sections and html docs
</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes [Feature]: Add unit testing automation templates #39

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