Clarify decision-making citation usage

[EigenCharlie]

Summary

• Adds a curated reading note for Fernandez-Loria and Provost (2022), keeping the PDF in the ignored local literature archive rather than versioning it.
• Clarifies the manuscript's use of the citation as an estimand/action distinction, not credit or causal evidence.
• Adds a manuscript-body reference audit that separates strong local reading evidence from partial and citation-only references.

Validation

• just paper-submission
• official LaTeX compile of paper/submission/CRPTO_ijds_submission.tex via latexmk (24 pages)
• just lint
• just smoke
• just validate-champion
• pre-push hooks: dvc status, smoke, validate champion