Fix review markers, Rhiza link and PDF metadata

[tschm]

Three mechanical fixes to vision.tex. No prose changes — every sentence is untouched.

1. The red review markers ship in the published PDF

3e8e898 ("Mark today's additions in red") wrapped three passages in \color{red}:

• the prior-art footnote on SecDB / Beacon / Deltix
• the reconciliation-in-banks passage in A New Direction
• the whole Build or Buy section

That works as a marker for a reviewer who knows the convention, but the CI job publishes vision.pdf to gh-pages on every push to main, so a reader arriving at the public URL sees red text with no way to interpret it as anything other than emphasis or an unfinished draft. Build or Buy is one of the strongest sections in the document to have flagged that way. This restores all three to plain body text.

If the intent was to keep the marking for a while longer, the alternative is a line under the byline explaining the convention — happy to do that instead.

2. The Rhiza link pointed at the curriculum

In Keeping the Platform Consistent, "Rhiza was built on a different premise: scaffolding is not a one-time generation but a continuous synchronisation" linked to Jebel-Quant/rhiza-education. A reader following the argument about continuous sync landed on lesson material. Now points at Jebel-Quant/rhiza.

3. The PDF had no title or author metadata

\author{} is empty and there is no \title, so the distributed PDF carried no document title — it presents as vision.pdf in browser tabs, reference managers and anywhere it gets forwarded. Adds pdftitle and pdfauthor to the existing \hypersetup block. Nothing renders differently on the page.

Verification

Built locally with the same command and flags CI uses (xelatex -halt-on-error -interaction=nonstopmode, twice): compiles clean, 14 pages, unchanged from before. Confirmed no \color{red} and no rhiza-education remain, and that the built PDF's Info dictionary now carries Title = A Technology Vision for Quantitative Trading and Author = Thomas Schmelzer.

🤖 Generated with Claude Code

[Copilot]

Pull request overview

This PR makes three mechanical LaTeX updates to vision.tex to improve the published PDF’s presentation and correctness without changing the document’s prose.

Changes:

• Adds pdftitle and pdfauthor to the existing \hypersetup block so the generated PDF includes title/author metadata.
• Removes \color{red} review-marker wrapping from the prior-art footnote and two marked sections so the public PDF no longer renders red “draft” text.
• Fixes the Rhiza hyperlink to point to Jebel-Quant/rhiza instead of Jebel-Quant/rhiza-education.

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