feat(docs): autonomous structured expansion on vibe-coding-context-hydration-patterns

[beginwebdev2002]

Created a new documentation file docs/vibe-coding-context-hydration-patterns.md covering context hydration best practices for AI Agent orchestration and Vibe Coding. The documentation rigorously adheres to the architectural and structural templates (YAML frontmatter, 4-step cycle, emojis, Mermaid diagrams with custom classDefs, and strict TypeScript types avoiding any). Updated the _sidebar.md navigation file to include the new topic alphabetically. Validated with vibe-check-runner.js and commit_verify.py.

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PR created automatically by Jules for task 2231533207426985535 started by @beginwebdev2002

[google-labs-jules]

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