feat(docs): autonomous structured expansion on ai-agent-autonomous-refactoring-pipelines

[beginwebdev2002]

Autonomously generated a deterministic architectural guide on AI Agent Autonomous Refactoring Pipelines. The article follows the 2026 strict tech standards, implements the four-step pattern lifecycle (Bad Practice, Problem, Best Practice, Solution), includes Mermaid diagrams, GitHub callouts, and relies on AST parsing instead of regex for safety, replacing any with unknown and custom Type Guards. Included in the index _sidebar.md.

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PR created automatically by Jules for task 11328947555324147189 started by @beginwebdev2002

[google-labs-jules]

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