feat: implement complete tree-sitter-shellspec grammar with comprehensive testing

- Add full ShellSpec grammar extending tree-sitter-bash
- Support all ShellSpec constructs: Describe, Context, It, hooks, utilities
- Include Data block parsing with statements and argument styles
- Add 61 comprehensive test cases covering real-world patterns
- Implement optimized GitHub workflows with CI/CD automation
- Configure complete development tooling (linting, formatting, pre-commit)
- Add comprehensive documentation and contribution guidelines
- Optimize grammar conflicts to zero warnings
- Support editor integration for Neovim, VS Code, Emacs

Breaking Changes:
- Initial release, no previous API to break

BREAKING CHANGE: Initial implementation of tree-sitter-shellspec grammar

# Conflicts:
#	.github/workflows/codeql.yml
#	.github/workflows/pr-lint.yml
#	.pre-commit-config.yaml

# Conflicts:
#	.github/workflows/pr-lint.yml

# Conflicts:
#	.github/workflows/pr-lint.yml

.mega-linter.yml

@@ -17,19 +17,13 @@ SHOW_SKIPPED_LINTERS: false # Show skipped linters in MegaLinter log
 
 DISABLE_LINTERS:
   - REPOSITORY_DEVSKIM
-
-ENABLE_LINTERS:
-  - YAML_YAMLLINT
-  - MARKDOWN_MARKDOWNLINT
-  - YAML_PRETTIER
   - JSON_PRETTIER
-  - JAVASCRIPT_ES
-  - TYPESCRIPT_ES
+  - BASH_EXEC
+  - BASH_SHELLCHECK
+  - SPELL_LYCHEE
 
 YAML_YAMLLINT_CONFIG_FILE: .yamllint.yml
 MARKDOWN_MARKDOWNLINT_CONFIG_FILE: .markdownlint.json
-JAVASCRIPT_ES_CONFIG_FILE: .eslintrc.json
-TYPESCRIPT_ES_CONFIG_FILE: .eslintrc.json
 
 FILTER_REGEX_EXCLUDE: >
-  (node_modules|\.automation/test|docs/json-schemas|\.github/workflows)
+  (node_modules|test/spec|src|megalinter-reports)