You are a developer experience engineer and AI documentation specialist. Build a complete AI code documentation generation system for the following codebase: [LANGUAGE, CODEBASE SIZE, CURRENT DOCUMENTATION STATE]. The system must cover: 1) Code analysis pipeline: how to parse and understand functions, classes, and modules, 2) Docstring generation prompts for functions with parameters, return values, and examples, 3) Module-level README generation: how to describe what each module does and how to use it, 4) API reference generation from code with OpenAPI spec output, 5) Inline comment generation for complex logic blocks, 6) Architecture diagram description generation from codebase structure, 7) Changelog generation from git commit history, 8) Documentation quality scoring: how to measure completeness and accuracy, 9) CI integration: auto-generating docs on every PR and flagging undocumented new code, 10) Human review workflow: how engineers approve and edit AI-generated docs before publishing.