Add comprehensive file naming and versioning standards

- Add FILE-NAMING-AND-VERSIONING.md with complete Semantic Versioning 2.0.0 and Harvard Data Management file naming conventions
- Update README.md with file naming standards and semantic versioning workflow
- Update KICAD-PROJECT-TEMPLATE.md with comprehensive file naming examples and git workflow
- Update hardware/bom/README.md with standardized BOM file naming conventions
- Update manufacturing/gerbers/README.md with production-ready Gerber file naming
- Update mechanical/stl/README.md with 3D printing file naming including material suffixes
- Implement YYYY-MM-DD date format and hyphen-separated naming throughout
- Add versioning strategies for hardware, software, and documentation components
- Include git tagging strategy and release management guidelines
- Provide comprehensive examples for all file types and directories

KICAD-PROJECT-TEMPLATE.md

@@ -149,29 +149,55 @@ your-project/
 - [ ] Assembly instructions written
 - [ ] Test procedures documented
 
-## 🔧 Git Workflow
+## 🔧 Git Workflow and File Naming
+
+This template follows **Semantic Versioning 2.0.0** and **Harvard Data Management file naming conventions**. See [FILE-NAMING-AND-VERSIONING.md](FILE-NAMING-AND-VERSIONING.md) for complete details.
+
+### File Naming Standards
+- **No spaces**: Use hyphens (-) instead of spaces
+- **Date format**: YYYY-MM-DD for chronological sorting
+- **Versioning**: Follow semantic versioning (MAJOR.MINOR.PATCH)
+- **Structure**: `[project-name]_[component-type]_[description]_[version]_[date].extension`
+
+### Examples
+```
+my-project_bom_v1.2.0_2024-08-04.csv
+my-project_gerbers_v1.0.0_2024-08-04.zip
+my-project_user-manual_v1.0.0_2024-08-04.pdf
+my-project_housing-main_v2.0.0.sldprt
+my-project_symbols_mcu_v1.0.0.kicad_sym
+```
 
 ### Initial Setup
 ```bash
 # After creating KiCad project
 git add .
-git commit -m "Initial KiCad project setup"
+git commit -m "Initial KiCad project setup v1.0.0"
+git tag -a v1.0.0 -m "Initial release - functional prototype"
 git remote add origin https://your-git-server.com/username/your-project.git
 git push -u origin main
+git push --tags
 ```
 
 ### Development Workflow
 ```bash
 # Regular development cycle
 git add .
-git commit -m "Descriptive commit message"
+git commit -m "Update component values - v1.0.1"
+git tag -a v1.0.1 -m "Bug fix - corrected resistor values"
 git push
+git push --tags
 
 # For major milestones
-git tag -a v1.0.0 -m "Release version 1.0.0"
+git tag -a v2.0.0 -m "Major PCB redesign with new connector layout"
 git push --tags
 ```
 
+### Semantic Versioning Strategy
+- **MAJOR**: PCB layout changes, connector changes, mechanical incompatibilities
+- **MINOR**: Component changes, new features, firmware updates  
+- **PATCH**: Documentation updates, BOM corrections, minor fixes
+
 ### Branch Strategy
 - `main`: Stable, tested designs
 - `develop`: Active development