Add comprehensive sensor validation tests and physics algorithm verification

- Implemented SensorEdgeCaseTests.cpp to validate sensor performance under extreme conditions, including noise immunity, saturation handling, PID oscillation prevention, calibration drift compensation, sensor fusion, high-speed sampling, and dropout recovery.
- Created SensorInternalValidation.cpp to test the internal logic of the sensor firmware using mocks, covering scenarios like all white, center line detection, and far left detection.
- Added a temporary CTestCostData.txt for cost data tracking.
- Developed VerifyAlgorithms.ps1 to verify physics calculations against known analytical solutions, covering projectile motion, harmonic motion, free fall, elastic collision, pendulum period, and circular motion.

Author: Kinin-Code-Offical

.github/pull_request_template.md

@@ -1,27 +1,102 @@
 # Pull Request
 
-## Context
+## \ud83d\udd17 Context
 
-<!-- Link relevant issues: Fixes #123 -->
+<!-- Link relevant issues using "Fixes #123" or "Relates to #456" -->
 
 Fixes #
 
-## Proposed Changes
+## \u2728 Type of Change
 
-<!-- What did you do? -->
+<!-- Mark the relevant option(s) with an "x" -->
 
+- [ ] 🐛 Bug fix (non-breaking change fixing an issue)
+- [ ] ✨ New feature (non-breaking change adding functionality)
+- [ ] 💥 Breaking change (causes existing functionality to change)
+- [ ] 📚 Documentation update
+- [ ] 🎨 Refactoring (no functional changes)
+- [ ] ⚡ Performance improvement
+- [ ] 🧪 Test improvement
+
+## \ud83d\udcdd Proposed Changes
+
+<!-- What did you change? Be specific. -->
+
+-
 -
+-
+
+## \u2705 Verification
+
+### Automated Tests
+
+<!-- Paste relevant test results -->
+
+```bash
+# Example:
+dotnet test CoreSim/CoreSim.sln
+builds/native/PhysicsDeepValidation.exe
+```
+
+**Results:**
+
+- [ ] CoreSim unit tests pass
+- [ ] Physics validation passes
+- [ ] Sensor validation passes (if applicable)
+- [ ] Integration tests pass (if applicable)
+
+### Manual Testing
+
+<!-- Describe manual testing performed -->
+
+- [ ] Tested in Unity Editor
+- [ ] Tested in standalone build
+- [ ] Verified on target hardware (if applicable)
 
-## Verification
+## \ud83d\udcca Performance Impact
 
-<!-- How did you verify this? -->
+<!-- If applicable, include before/after benchmarks -->
 
-- [ ] Automated Tests Passed
-- [ ] Manual Verification
+- [ ] No performance impact
+- [ ] Performance improvement: \_\_\_\_%
+- [ ] Acceptable performance trade-off
 
-## Governance Checklist
+## \ud83d\udcf8 Screenshots/Videos
 
+<!-- Add visual evidence if applicable -->
+
+## \ud83d\udce6 Build Artifacts
+
+- [ ] No build artifacts committed (_.exe, _.dll, _.pdb, _.lib, \*.obj)
+- [ ] No Unity Library/ or Temp/ folders included
+- [ ] No logs/ or builds/ directories included
+
+## \ud83d\udcd6 Documentation
+
+- [ ] README.md updated (if needed)
+- [ ] docs/ files updated (if needed)
+- [ ] Inline code comments added for complex logic
+- [ ] API documentation updated (XML comments for public APIs)
+
+## \u2699\ufe0f Governance Checklist
+
+- [ ] Code follows project style guidelines (see CONTRIBUTING.md)
+- [ ] No unrelated changes included
+- [ ] Minimal, focused scope
 - [ ] `docs/repo_files.txt` updated (`python tools/rt_tool.py update-repo-snapshot`)
-- [ ] `workspace_snapshot.txt` is gitignored (not included in PR)
-- [ ] Minimal scope (no unrelated changes)
-- [ ] CI is Green
+- [ ] CI checks pass (if configured)
+- [ ] Self-reviewed for obvious issues
+
+## \ud83d\udc65 Review Notes
+
+<!-- Any specific areas you'd like reviewers to focus on? -->
+
+## \ud83d\udca5 Breaking Changes
+
+<!-- If applicable, describe impact and migration path -->
+
+N/A
+
+---
+
+**By submitting this PR, I confirm my contribution is made under the MIT License.**

.gitignore

@@ -2,6 +2,17 @@
 **/bin/
 **/obj/
 **/TestResults/
+**/builds/
+*.exe
+*.dll
+*.so
+*.dylib
+*.a
+*.lib
+*.exp
+*.ilk
+*.iobj
+*.ipdb
 
 # Autogenerated VS/MD/Consulo solution and project files
 ExportedObj/
@@ -19,6 +30,13 @@ ExportedObj/
 *.pdb
 *.opendb
 *.VC.db
+*.o
+*.obj
+*.log
+*.tlog
+*.idb
+*.lastbuildstate
+*.unsuccessfulbuild
 
 # Unity3D generated meta files
 *.pidb.meta
@@ -89,3 +107,28 @@ ExportedObj/
 
 # Local tools and installers
 /builds/com0com/
+/builds/firmware/
+/builds/native/
+/builds/windows/
+
+# Test outputs
+test_output.txt
+output.txt
+*.o
+PhysicsEngineTests.o
+PhysicsWorld.o
+
+# History and temporary
+.history/
+*.swp
+*.swo
+*~
+.vs/
+
+# CMake
+CMakeCache.txt
+CMakeFiles/
+cmake_install.cmake
+install_manifest.txt
+compile_commands.json
+CTestTestfile.cmake

CHANGELOG.md

@@ -0,0 +1,68 @@
+## RobotWin Studio - Changelog
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+### Added
+
+- 🧪 Physics deep validation suite with energy conservation tests
+- 🧪 Sensor internal validation suite for line sensor algorithms
+- ⚡ SIMD optimization with AVX2 instructions
+- ⚡ Fast floating-point math (`/fp:fast`) for performance
+- ⚡ Precomputed effective mass in contact resolution
+- ⚡ Angular inertia integration in collision response
+- 📚 Comprehensive README with badges and feature highlights
+- 📚 Enhanced CONTRIBUTING.md with detailed guidelines
+- 📚 Expanded CODE_OF_CONDUCT.md with clear expectations
+- 📚 Improved SECURITY.md with vulnerability reporting process
+- 🔧 Updated .gitignore with comprehensive exclusion patterns
+
+### Fixed
+
+- 🐛 Physics damping time-step dependency (now `damping * dt`)
+- 🐛 Ground friction model (switched to proper Coulomb friction)
+- 🐛 Restitution coefficient application in collisions
+- 🐛 Energy conservation in elastic collisions (now exact)
+- 🐛 Sensor test compilation conflicts with Arduino macros
+
+### Changed
+
+- 🎨 Improved build system with Release configuration defaults
+- 🎨 Cleaned up binary artifacts from repository
+- 🎨 Enhanced PR template with comprehensive checklist
+
+## [0.1.0] - Initial Release
+
+### Added
+
+- 🎯 CoreSim deterministic scheduler (.NET 8)
+- 🎯 NativeEngine C++ physics simulation
+- 🎯 FirmwareEngine ATmega328P emulation
+- 🎯 Unity 6 LTS visualization frontend
+- 🎯 Named pipe IPC between components
+- 🎯 Basic rigid body physics (sphere and box collision)
+- 🎯 Vehicle simulation with Pacejka tire model
+- 🎯 Ground plane support with friction
+- 🎯 Distance constraints (springs/ropes)
+- 🎯 Circuit simulation (nodal solver)
+- 🎯 Line sensor array implementation
+
+---
+
+### Emoji Key
+
+- ✨ New feature
+- 🐛 Bug fix
+- ⚡ Performance improvement
+- 📚 Documentation
+- 🎨 Code style/refactoring
+- 🧪 Tests
+- 🔧 Configuration
+- 🚀 Deployment
+- 💥 Breaking change
+- 🔒 Security fix
+- 🎯 Core functionality

CODE_OF_CONDUCT.md

@@ -1,20 +1,66 @@
-# Code of Conduct
+# 🤝 Code of Conduct
 
-RobotWin Studio is a collaborative project. We expect everyone to help keep the community welcoming and productive.
+## Our Pledge
 
-## Our standards
+In the interest of fostering an open and welcoming environment, we as contributors and maintainers pledge to make participation in **RobotWin Studio** a harassment-free experience for everyone, regardless of age, body size, 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.
 
-- Be respectful and constructive.
-- Assume good intent; ask clarifying questions.
-- No harassment, hate speech, or personal attacks.
-- Respect privacy: don’t share private information without consent.
+## Our Standards
+
+### ✅ Expected Behavior
+
+- **Be respectful and constructive** in all interactions
+- **Assume good intent** and ask clarifying questions before jumping to conclusions
+- **Welcome newcomers** and help them get started
+- **Provide constructive feedback** with specific, actionable suggestions
+- **Accept constructive criticism** gracefully
+- **Focus on what is best** for the community and project
+- **Show empathy** towards other community members
+
+### ❌ Unacceptable Behavior
+
+- **Harassment** of any kind, including offensive comments, trolling, or personal attacks
+- **Hate speech** or discriminatory language
+- **Publishing private information** without explicit permission (doxxing)
+- **Sexual content** or unwelcome sexual attention
+- **Sustained disruption** of discussions or project work
+- **Advocating for or encouraging** any of the above behavior
 
 ## Scope
 
-This applies in project spaces (issues, pull requests, discussions) and other official communication channels.
+This Code of Conduct applies in all project spaces, including:
+
+- GitHub repositories (issues, pull requests, discussions, wiki)
+- Official communication channels (Discord, Slack, email lists)
+- Project events (meetups, conferences)
+- Social media when representing the project
 
 ## Enforcement
 
-Project maintainers may remove content, lock threads, or restrict participation for behavior that violates this policy.
+### Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable behavior and are expected to take appropriate and fair corrective action in response to any instances of unacceptable behavior.
+
+### Actions
+
+Project maintainers have the right and responsibility to:
+
+- Remove, edit, or reject comments, commits, code, wiki edits, issues, and other contributions
+- Ban temporarily or permanently any contributor for behaviors deemed inappropriate, threatening, offensive, or harmful
+
+### Reporting
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be reported by:
+
+1. **Opening an issue** with the label `conduct` or `governance`
+2. **Contacting maintainers** directly (if contact information is available)
+3. **Using GitHub's report feature** on specific comments or content
+
+All complaints will be reviewed and investigated promptly and fairly. All project maintainers are obligated to respect the privacy and security of the reporter.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant](https://www.contributor-covenant.org/), version 2.0.
+
+## Questions?
 
-To report a concern, open an issue labeled `governance` or contact the maintainers via a private channel if available.
+If you have questions about this Code of Conduct, please open a discussion or contact the maintainers.