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

.pre-commit-config.yaml

@@ -3,7 +3,6 @@ repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v6.0.0
     hooks:
-      - id: requirements-txt-fixer
       - id: detect-private-key
       - id: trailing-whitespace
         args: [--markdown-linebreak-ext=md]
@@ -33,22 +32,17 @@ repos:
     hooks:
       - id: yamllint
 
-  - repo: https://github.com/scop/pre-commit-shfmt
-    rev: v3.11.0-1
-    hooks:
-      - id: shfmt
-
   - repo: https://github.com/koalaman/shellcheck-precommit
     rev: v0.11.0
     hooks:
       - id: shellcheck
-        args: ['--severity=warning']
+        args: ["--severity=warning"]
 
   - repo: https://github.com/rhysd/actionlint
     rev: v1.7.10
     hooks:
       - id: actionlint
-        args: ['-shellcheck=']
+        args: ["-shellcheck="]
 
   - repo: https://github.com/renovatebot/pre-commit-hooks
     rev: 42.66.8
@@ -60,4 +54,4 @@ repos:
     hooks:
       - id: checkov
         args:
-          - '--quiet'
+          - "--quiet"