[governance] Implement Full Inventory & Review System for Codebase Governance + Baseline Review

CONTRIBUTING.md

@@ -191,6 +191,25 @@ Documentation is a critical part of the project. All changes should include appr
 - **API Changes**: Update OpenAPI specifications and CLI reference
 - **Keep Current**: Remove outdated information and fix broken links
 
+## Code Governance & Quality Assurance
+
+The project maintains high code quality through systematic review processes:
+
+### Codebase Review Process
+
+- **[Full Inventory & Review](docs/tasks/prd-full-inventory-review.md)**: Comprehensive codebase review framework
+- **[Review Templates](docs/reviews/)**: Standardized templates for systematic quality assessment
+- **Review Scope**: Package-by-package analysis, documentation alignment, security audit
+- **Quality Gates**: 90%+ coverage, clean lints, architectural compliance
+- **Non-blocking**: Reviews don't halt development; used for continuous improvement
+
+### Quality Standards
+
+- **Architecture Alignment**: Regular verification against `docs/architecture.md`
+- **Security Compliance**: Access control, secret scanning, dependency audits
+- **Performance Monitoring**: Latency targets, memory efficiency, scalability assessment
+- **Documentation Currency**: Alignment between code and documentation
+
 ## Testing
 
 Comprehensive testing is mandatory. See the [Testing Guide](docs/testing-guide.md) for detailed information.

PLAN.md

@@ -490,3 +490,27 @@ To maximize security and minimize attack surface, the proxy implements a whiteli
 - The event bus is now always enabled by default; configuration options have changed.
 - For persistent event logging, use the new dispatcher command or the `--file-event-log` flag.
 - OpenAI token counting is now accurate and uses tiktoken-go for all prompt/completion calculations.
+
+## Project Governance & Quality Assurance
+
+The project maintains high standards through systematic review and governance processes:
+
+### Code Quality Framework
+- **[Full Inventory & Review Process](docs/tasks/prd-full-inventory-review.md)**: Comprehensive codebase review framework for architectural compliance
+- **[Review Templates](docs/reviews/)**: Standardized templates for systematic quality assessment
+- **Quality Gates**: 90%+ coverage (enforced), clean lints, architectural alignment verification
+- **Test-Driven Development**: Mandatory TDD with failing tests before implementation
+
+### Governance Integration
+- **Architecture Compliance**: Regular verification against documented design principles
+- **Security Review**: Systematic assessment of access controls, secrets management, and dependency security
+- **Documentation Alignment**: Continuous validation of code-documentation consistency
+- **Non-blocking Process**: Reviews guide improvement without halting development
+
+### Review Scope
+- **Package-by-Package Analysis**: Systematic review of all `internal/*` and `cmd/*` components
+- **Dead Code Detection**: Identification and removal of unused code and dependencies
+- **Performance Assessment**: Latency, memory efficiency, and scalability compliance
+- **Maintainer Sign-off**: Governance oversight with clear accountability and follow-up tracking
+
+This governance framework ensures architectural integrity, security compliance, and code quality while maintaining development velocity and transparency.

docs/README.md

@@ -44,6 +44,11 @@ The [OpenAPI specification](../api/openapi.yaml) provides machine-readable API d
 - **[Code Organization Guide](code-organization.md)** - Package structure, layering, and architectural boundaries
 - **[Development Setup](copilot-agent-setup.md)** - Development environment and tooling
 
+## Governance & Quality Assurance
+
+- **[Full Codebase Inventory & Review](tasks/prd-full-inventory-review.md)** - Comprehensive codebase review process and templates
+- **[Review Templates](reviews/)** - Templates for conducting systematic code reviews and quality assessments
+
 ## Implementation Details
 
 - **[Issues](issues/)** - Design decisions, architectural discussions, and implementation notes

docs/architecture.md

@@ -661,6 +661,24 @@ graph TD
 - **Distributed Rate Limiting**: Redis-backed rate limiting for clustered deployments
 - **Real-time Usage Metrics**: Streaming metrics via WebSockets for monitoring dashboards
 
+## Code Governance & Architecture Compliance
+
+The project maintains architectural integrity through systematic review processes:
+
+### Architectural Review Framework
+
+- **[Full Inventory & Review Process](tasks/prd-full-inventory-review.md)**: Comprehensive framework for architecture compliance verification
+- **[Review Templates](reviews/)**: Standardized templates for systematic architectural assessment
+- **Architecture Drift Detection**: Regular verification of implementation against this document
+- **Component Boundary Enforcement**: Package-level isolation and interface compliance review
+
+### Quality Gates for Architecture
+
+- **Design Principle Compliance**: Verification of minimal transformation, transparency, and performance principles
+- **Component Interaction Validation**: Review of data flow and component boundaries
+- **Interface Consistency**: API design and package interface alignment verification
+- **Performance Characteristic Maintenance**: Latency, memory, and scalability goal compliance
+
 ## Whitelist (Allowlist) for URIs and Methods
 
 To ensure security and maintain transparency, the proxy uses a whitelist (allowlist) for valid API URIs and HTTP methods. For the MVP, this list is hardcoded for OpenAI endpoints (such as `/v1/chat/completions`, `/v1/completions`, `/v1/embeddings`, `/v1/models`) and methods (`POST`, `GET`).