add error and steps

CONTRIBUTING.md

@@ -22,6 +22,7 @@ We welcome contributions from everyone. By participating in this project, you ag
 - [Development Workflow](#development-workflow)
 - [Pull Request Guidelines](#pull-request-guidelines)
 - [Code Style Guidelines](#code-style-guidelines)
+- [Debugging Pre-commit Hooks](#debugging-pre-commit-hooks)
 - [Community Guidelines](#community-guidelines)
 
 ## 🤝 How Can I Contribute?
@@ -225,6 +226,265 @@ TODO: Add project-specific code style guidelines
 - Use type hints where applicable
 - Write docstrings for functions/classes
 
+## 🔧 Debugging Pre-commit Hooks
+
+Pre-commit hooks help maintain code quality by running automated checks before each commit. This section helps you troubleshoot common issues.
+
+### Initial Setup
+
+If pre-commit is configured in this project, install it first:
+
+```bash
+pip install pre-commit
+pre-commit install
+```
+
+### Common Errors and Solutions
+
+#### 1. **Pre-commit Hook Failed: Trailing Whitespace**
+
+**Error:**
+```text
+Trim Trailing Whitespace.................................................Failed
+- hook id: trailing-whitespace
+- exit code: 1
+- files were modified by this hook
+```
+
+**Solution:**
+```bash
+# Pre-commit automatically fixes this. Just re-stage and commit:
+git add .
+git commit -m "your message"
+```
+
+#### 2. **Pre-commit Hook Failed: End of File Fixer**
+
+**Error:**
+```text
+Fix End of Files.........................................................Failed
+- hook id: end-of-file-fixer
+- exit code: 1
+- files were modified by this hook
+```
+
+**Solution:**
+```bash
+# Files are automatically fixed. Re-add and commit:
+git add .
+git commit -m "your message"
+```
+
+#### 3. **Pre-commit Hook Failed: Check YAML/JSON/TOML**
+
+**Error:**
+```text
+Check Yaml..........................................Failed
+- hook id: check-yaml
+- exit code: 1
+
+File .github/workflows/test.yml: mapping values are not allowed here
+```
+
+**Solution:**
+```bash
+# Fix the syntax error in the file (check line number in error)
+# Common issues:
+# - Incorrect indentation
+# - Missing colons
+# - Invalid characters
+# Then commit again
+```
+
+#### 4. **Pre-commit Hook Failed: Detect Secrets**
+
+**Error:**
+```text
+detect-secrets...........................................................Failed
+- hook id: detect-secrets
+- exit code: 1
+
+Potential secrets about to be added to git repo:
+
+  Secret Type: AWS Access Key
+  Location:    config/settings.py:42
+```
+
+**Solution:**
+```bash
+# Option 1: Remove the secret and use environment variables
+# Replace hardcoded secrets with:
+# API_KEY = os.getenv('API_KEY')
+
+# Option 2: If it's a false positive, update baseline:
+# detect-secrets scan > .secrets.baseline
+# git add .secrets.baseline
+```
+
+#### 5. **Pre-commit Hook Failed: Mixed Line Endings**
+
+**Error:**
+```text
+Mixed line ending........................................................Failed
+- hook id: mixed-line-ending
+- exit code: 1
+- files were modified by this hook
+```
+
+**Solution:**
+```bash
+# Automatically fixed to LF. Re-add and commit:
+git add .
+git commit -m "your message"
+```
+
+#### 6. **Pre-commit Hook Failed: Large Files**
+
+**Error:**
+```text
+Check for added large files..............................................Failed
+- hook id: check-added-large-files
+- exit code: 1
+
+large.zip (5.2 MB) exceeds 500 KB
+```
+
+**Solution:**
+```bash
+# Option 1: Remove large files
+git rm --cached large.zip
+
+# Option 2: Use Git LFS for large files
+git lfs install
+git lfs track "*.zip"
+git add .gitattributes
+
+# Option 3: Increase limit (not recommended)
+# Edit .pre-commit-config.yaml:
+# args: ['--maxkb=10000']  # 10MB
+```
+
+#### 7. **Pre-commit Hook Failed: Merge Conflict Markers**
+
+**Error:**
+```text
+Check for merge conflicts................................................Failed
+- hook id: check-merge-conflict
+- exit code: 1
+
+Merge conflict markers found in:
+  src/main.js:45
+```
+
+**Solution:**
+```bash
+# Open the file and remove conflict markers:
+# <<<<<<< HEAD
+# =======
+# >>>>>>> branch-name
+
+# Then commit again
+```
+
+#### 8. **Pre-commit Not Running**
+
+**Problem:** Commits go through without pre-commit checks
+
+**Solution:**
+```bash
+# Reinstall pre-commit hooks
+pre-commit uninstall
+pre-commit install
+
+# Verify installation
+pre-commit run --all-files
+```
+
+#### 9. **Pre-commit Takes Too Long**
+
+**Problem:** Pre-commit is slow on every commit
+
+**Solution:**
+```bash
+# Run only on changed files (default behavior)
+git commit -m "message"
+
+# Skip pre-commit for quick commits (use sparingly!)
+git commit --no-verify -m "message"
+
+# Update pre-commit hooks
+pre-commit autoupdate
+```
+
+#### 10. **Hook Installation Failed**
+
+**Error:**
+```text
+An error has occurred: InvalidManifestError:
+=====> /path/to/.pre-commit-config.yaml does not exist
+```
+
+**Solution:**
+```bash
+# Ensure you're in the project root directory
+cd /path/to/project/root
+
+# Verify config file exists
+ls -la .pre-commit-config.yaml
+
+# Reinstall
+pre-commit install
+```
+
+### Bypassing Pre-commit (Emergency Only)
+
+**⚠️ Use only when absolutely necessary:**
+
+```bash
+# Skip pre-commit hooks for a single commit
+git commit --no-verify -m "emergency fix"
+
+# Or use the short flag
+git commit -n -m "emergency fix"
+```
+
+**Note:** This should be rare. If you need to bypass frequently, discuss with maintainers.
+
+### Running Pre-commit Manually
+
+```bash
+# Run all hooks on all files
+pre-commit run --all-files
+
+# Run a specific hook
+pre-commit run trailing-whitespace --all-files
+
+# Run on specific files
+pre-commit run --files src/main.js src/utils.js
+```
+
+### Updating Pre-commit Hooks
+
+```bash
+# Update to latest versions
+pre-commit autoupdate
+
+# Clean and reinstall
+pre-commit clean
+pre-commit install
+```
+
+### Getting Help
+
+If you encounter issues not covered here:
+
+1. Check [pre-commit documentation](https://pre-commit.com/)
+2. Review the error message carefully (it usually tells you what's wrong)
+3. Ask in the project's Discord channel
+4. Search for similar issues in the repository
+
+**Remember:** Pre-commit hooks are there to help you maintain code quality. Don't fight them - fix the issues they find!
+
 ## 🌟 Community Guidelines
 
 ### Communication