Fix full-deck Marp overflow and presenter identity - #17

Summary

• Complete Chris's Principal Software Engineer / Azure EngOps AzRel identity on the cover, closing contact block, PDF metadata, and README contact; retain Microsoft.
• Add opt-in compact spacing for slides 8, 18, 20, 27, and 36, preserving the 29px body font and original code sizing.
• Bound the diagrams on 5 and 37, reveal the full observability artwork on 40, and balance the cover's column markup. Slide numbering is unchanged.
• Preserve all 53 slides, substantive content, demo code, six speaker notes, table rows, 41 link/image destinations, and source artwork, including all eight embedded Draw.io models. Publishing workflows are unchanged.

Full-deck review

Reviewed commit: d005c6b05ad6d6042d943f5e3ce375def1ad3d88.

Used the installed marp-slide-review scripts directly because the skill loader did not expose the skill. Every baseline PNG was inspected at 1280x720; final coverage is 41 pixel-identical slides plus 12 reinspected slides. Compared PDF pages 1, 2, 5, 8, 18, 19, 20, 27, 36, 37, 40, and 53 with the PNG output; all 53 PDF pages pass text-boundary checks.

The installed overflow check passes at its default 2px tolerance. An additional asset-resolved HTML audit reports zero overflow, boundary violations, footer collisions, missing images, font failures, or runtime/network errors. Exact identity matches are 4 role / 4 affiliation in the deck (including metadata), plus 1 / 1 in README; the PDF has three visible identity pairs and the canonical author metadata.

Remaining source-image limitations

Existing raster diagram fine print remains small, notably on 5 and 19; 37 remains soft when enlarged from its 622x366 source. All embedded editable models are preserved. The tiny, cropped code in slide 8's stock-photo background is decorative, not the talk's Dockerfile, and has no editable source here.

Render evidence is retained outside the repository. No sample apps, security scanners, cloud deployments, model evaluations, or subagents were run; normal CI is unchanged.