Fix many thing for better project quality please (very comprehensive)

.editorconfig

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+# EditorConfig helps maintain consistent coding styles across editors
+# https://editorconfig.org
+
+root = true
+
+[*]
+indent_style = space
+indent_size = 2
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false
+
+[Makefile]
+indent_style = tab
+
+[*.sh]
+indent_size = 4

.github/ISSUE_TEMPLATE/bug_report.yml

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+---
+name: Bug Report
+description: Report a bug or unexpected behavior in gstack
+title: "[Bug]: "
+labels: ["bug"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to report a bug! Please fill out the sections below.
+
+  - type: input
+    id: version
+    attributes:
+      label: gstack version
+      description: Run `cat ~/.claude/skills/gstack/VERSION` or check your install
+      placeholder: "e.g., 1.34.0"
+    validations:
+      required: true
+
+  - type: dropdown
+    id: os
+    attributes:
+      label: Operating System
+      options:
+        - macOS
+        - Linux
+        - Windows (WSL)
+        - Windows (native)
+    validations:
+      required: true
+
+  - type: textarea
+    id: description
+    attributes:
+      label: What happened?
+      description: A clear description of the bug
+      placeholder: Describe the unexpected behavior
+    validations:
+      required: true
+
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected behavior
+      description: What did you expect to happen?
+    validations:
+      required: true
+
+  - type: textarea
+    id: reproduce
+    attributes:
+      label: Steps to reproduce
+      description: How can we reproduce this issue?
+      placeholder: |
+        1. Run `/skill-name`
+        2. Provide input "..."
+        3. See error
+    validations:
+      required: true
+
+  - type: textarea
+    id: logs
+    attributes:
+      label: Relevant log output
+      description: Paste any relevant error messages or logs
+      render: shell
+
+  - type: textarea
+    id: context
+    attributes:
+      label: Additional context
+      description: Any other information that might help (screenshots, related issues, etc.)

.github/ISSUE_TEMPLATE/feature_request.yml

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+---
+name: Feature Request
+description: Suggest a new skill, workflow, or improvement
+title: "[Feature]: "
+labels: ["enhancement"]
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Have an idea for gstack? We'd love to hear it!
+
+  - type: textarea
+    id: problem
+    attributes:
+      label: Problem or motivation
+      description: What problem does this solve? What workflow is painful today?
+      placeholder: "I often find myself doing X manually when I wish gstack could..."
+    validations:
+      required: true
+
+  - type: textarea
+    id: solution
+    attributes:
+      label: Proposed solution
+      description: How would you like this to work?
+    validations:
+      required: true
+
+  - type: dropdown
+    id: type
+    attributes:
+      label: Type of change
+      options:
+        - New skill/workflow
+        - Improvement to existing skill
+        - New tool integration
+        - Documentation
+        - Other
+    validations:
+      required: true
+
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives considered
+      description: Have you tried other approaches or workarounds?
+
+  - type: textarea
+    id: context
+    attributes:
+      label: Additional context
+      description: Screenshots, examples, or links that help explain the request

.github/PULL_REQUEST_TEMPLATE.md

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+## What does this PR do?
+
+<!-- Brief description of the change -->
+
+## Type of change
+
+- [ ] Bug fix
+- [ ] New skill or workflow
+- [ ] Improvement to existing skill
+- [ ] Documentation
+- [ ] CI/tooling
+- [ ] Other
+
+## Testing
+
+- [ ] I tested this by actually using the skill in Claude Code
+- [ ] `bun test` passes locally
+- [ ] N/A (documentation only)
+
+## Checklist
+
+- [ ] My changes follow the existing code style
+- [ ] I've updated documentation if needed
+- [ ] Skill prompts are clear and unambiguous
+- [ ] No hardcoded paths or credentials

.shellcheckrc

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+# ShellCheck configuration
+# https://www.shellcheck.net/wiki/
+
+# Allow sourcing from paths relative to the script
+external-sources=true
+
+# Disable "not following" warning for sourced files
+disable=SC1091

CODE_OF_CONDUCT.md

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+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+We as members, contributors, and leaders pledge to make participation in our
+community a harassment-free experience for everyone, regardless of age, body
+size, visible or invisible disability, ethnicity, sex characteristics, gender
+identity and expression, level of experience, education, socio-economic status,
+nationality, personal appearance, race, religion, or sexual identity
+and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to a positive environment:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior:
+
+* The use of sexualized language or imagery and unwelcome sexual attention
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information without explicit permission
+* Other conduct which could reasonably be considered inappropriate
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported to the project maintainers. All complaints will be reviewed and
+investigated promptly and fairly.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant](https://www.contributor-covenant.org),
+version 2.1, available at
+https://www.contributor-covenant.org/version/2/1/code_of_conduct.html.

SECURITY.md

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+# Security Policy
+
+## Supported Versions
+
+| Version | Supported          |
+| ------- | ------------------ |
+| latest  | :white_check_mark: |
+
+## Reporting a Vulnerability
+
+If you discover a security vulnerability in gstack, please report it responsibly.
+
+**Do NOT open a public GitHub issue for security vulnerabilities.**
+
+Instead, please:
+
+1. Email the maintainer directly (see GitHub profile for contact)
+2. Include a clear description of the vulnerability
+3. Provide steps to reproduce if possible
+4. Allow reasonable time for a fix before public disclosure
+
+## Scope
+
+gstack is a collection of Markdown skill files and shell scripts. Security concerns most likely involve:
+
+- Shell injection in scripts (`setup`, `bin/*`)
+- Credential exposure in skill prompts or configurations
+- Unsafe file operations (symlinks, permissions)
+
+## Response Timeline
+
+- **Acknowledgment:** Within 48 hours
+- **Initial assessment:** Within 1 week
+- **Fix or mitigation:** Depends on severity, but typically within 2 weeks
+
+Thank you for helping keep gstack safe for everyone.

contrib-tools/README.md

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+# contrib-tools/ — Community Contribution Utilities
+
+> "The best way to predict the future is to build tools that measure it" — Me
+
+A collection of quality assurance and developer experience tools for the gstack ecosystem.
+
+## Tools Available
+
+| Tool | Purpose | Vibe |
+|------|---------|------|
+| `repo-health-check.sh` | Full repository condition analysis with letter grade | 🏥 Doctor visit for your repo |
+| `productivity-meter.py` | Measure output + compare to Garry Tan benchmark | 📊 Am I shipping enough? |
+| `skill-validator.sh` | 12-point SKILL.md validation engine | 🔬 Trust but verify |
+| `commit-quality-analyzer.sh` | Commit message quality + AI slop detection | 📝 Keep it human |
+| `loc-celebration.sh` | Count LOC and CELEBRATE your achievements | 🎉 Every line matters |
+| `pre-commit-guardian.sh` | 8-point pre-commit hook protection | 🛡️ Save you from yourself |
+
+## Quick Start
+
+```bash
+# Run health check
+./contrib-tools/repo-health-check.sh
+
+# Check your productivity
+python3 contrib-tools/productivity-meter.py --days 30
+
+# Validate all skills
+./contrib-tools/skill-validator.sh
+
+# Analyze commit quality
+./contrib-tools/commit-quality-analyzer.sh 100
+
+# Celebrate your LOC
+./contrib-tools/loc-celebration.sh
+
+# Install pre-commit guardian
+cp contrib-tools/pre-commit-guardian.sh .git/hooks/pre-commit
+```
+
+## Philosophy
+
+More tools = more quality. More quality = more shipping. More shipping = more lines.
+More lines = more celebration. More celebration = more motivation. More motivation = more tools.
+
+It's a virtuous cycle. You're welcome.
+
+## Contributing
+
+If you have idea for more tool, please submit PR. All quality tool are welcome.
+The only requirement: it must include emoji in output and motivational message.