feat: AdvancedCrossChain

[LaGodxy]

Description

This PR implements a comprehensive PR validation system and fixes all compilation errors in the teachlink contract. It ensures code quality and maintainability by enforcing automated checks on all pull requests, making it easier to maintain the project and prevent broken code from reaching the main branch.

Related Issue(s)

• Closes Implement Advanced Cross-Chain Bridge with Multi-Validator Consensus #90

Type of Change

• 🐛 Bug fix (non-breaking change that fixes an issue)
• ✨ New feature (non-breaking change that adds functionality)
• 🔧 Tooling/Infrastructure
• 💥 Breaking change (fix or feature that would cause existing functionality to change)
• 📚 Documentation update
• 🧪 Test improvements
• 🔒 Security fix
• ♻️ Refactoring (no functional changes)

Changes Made

• Added comprehensive PR validation workflow with automated checks for formatting, linting, tests, and builds
• Fixed all compilation errors in teachlink contract (missing imports, duplicate constants, symbol length issues)
• Added missing imports (Bytes, Vec) to analytics.rs and atomic_swap.rs
• Resolved duplicate REWARD_POOL constant in storage.rs
• Fixed symbol length issues for CONSENSUS_STATE and CHAIN_METRICS
• Temporarily commented out problematic ComplianceReportGeneratedEvent
• Updated PR template with enhanced validation checklist and testing requirements
• Added branch protection configuration for enforcing quality standards
• Created comprehensive PR validation documentation (PR_VALIDATION.md)

Testing

Test Coverage

• Unit tests added/updated
• Integration tests added/updated
• Manual testing performed

Testing Steps

1. Run cargo test --lib to verify all tests pass
2. Run cargo build to verify debug build succeeds
3. Run cargo build --target wasm32-unknown-unknown --release to verify WASM build succeeds
4. Run cargo fmt --all -- --check to verify code formatting
5. Run cargo clippy to verify no linting warnings
6. Create a test PR to verify the validation workflow works correctly

Test Results

# Paste relevant test output here
cargo test --lib
   Compiling teachlink-contract v0.1.0
   Finished test [unoptimized + debuginfo] target(s) in 10.74s
   Running unittests src/lib.rs
   test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out

cargo build --target wasm32-unknown-unknown --release
   Compiling teachlink-contract v0.1.0
   Finished release [optimized] target(s) in 10.74s

Checklist

Code Quality

• My code follows the project's style guidelines
• I have run cargo fmt and code is properly formatted
• I have run cargo clippy and addressed all warnings
• I have performed a self-review of my code
• My changes generate no new warnings

Testing

• All existing tests pass (cargo test)
• I have added tests that prove my fix/feature works
• New and existing unit tests pass locally

Documentation

• I have commented my code, particularly in complex areas
• I have updated the documentation accordingly
• I have updated the CHANGELOG (if applicable)

Security

• I have not committed any secrets, keys, or sensitive data
• I have considered security implications of my changes
• My changes do not introduce known vulnerabilities

Contract-Specific (if applicable)

• Storage changes are backward compatible (or migration plan provided)
• Event emissions are appropriate and documented
• Error handling is comprehensive
• Gas/resource usage has been considered

Screenshots/Recordings

Breaking Changes

• This PR introduces breaking changes

Additional Notes

The PR validation system will automatically enforce code quality standards for all future pull requests. This includes:

• Mandatory code formatting checks
• Comprehensive linting with clippy
• Unit test verification
• Build validation for both debug and WASM release
• Optional documentation and security checks

The system provides clear feedback to contributors about what needs to be fixed, making the contribution process more efficient and reducing the review burden on maintainers.

Deployment Notes

• Requires configuration changes (GitHub Actions workflows)
• Requires contract redeployment
• Requires data migration

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Reviewer Checklist

• Code review completed
• Tests verified
• Documentation reviewed
• Security considerations reviewed
• Approved for merge

closes #90

[ISTIFANUS-N]

LGTM