🎨 Palette: [UX improvement] Enhance architecture diagram and link accessibility

[Igor Holt (igor-holt)]

I have implemented a set of micro-UX improvements focused on the project's primary interface: its documentation.

Key changes:

• Architectural Clarity: The Mermaid diagram in README.md now features a descriptive title, semantic node shapes (stadium shapes for workloads/clusters and hexagons for specialized scheduling/pinning logic), and dashed subgraph borders. These changes provide immediate cognitive relief for users trying to understand the Arbiter's hybrid orchestration layers.
• Accessibility: Added descriptive title attributes to external and internal links in the README.md (Genesis Conductor Engine and MIT License) to provide better context for screen readers and hover tooltips.
• Knowledge Capture: Updated .Jules/palette.md with a new entry on the benefits of semantic node shapes in complex system diagrams.

These small touches ensure the project's "first impression" is both accessible and technically intuitive.

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PR created automatically by Jules for task 16149947525764768254 started by Igor Holt (@igor-holt)

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[gemini-code-assist]

Code Review

This pull request updates the project's architectural documentation by introducing semantic node shapes to the Mermaid diagram in the README, aligning with a new learning documented in .Jules/palette.md. The diagram is expanded to include AI workloads and aSHARD VRAM pinning, with added styling for subgraphs and descriptive titles for external links. The reviewer recommended further improving the diagram's accessibility by adding accTitle and accDescr attributes for screen readers.

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[gemini-code-assist]

To fully align with the PR's objective of improving accessibility, consider adding accTitle and accDescr to the Mermaid diagram. While the frontmatter title provides a visual title, accTitle and accDescr ensure that screen readers can properly describe the diagram's structure and contents to visually impaired users.

Suggested change

	graph TD
	graph TD
	accTitle: Arbiter Hybrid Scheduling Architecture
	accDescr: Architecture diagram showing the three layers of Arbiter: Cloud Native Layer (AI Workloads and Kubernetes), Orchestration Layer (Arbiter Core and Quantum Scheduler), and Infrastructure Layer (aSHARD VRAM Pinning, Bare Metal, and GPU).