MUST:     Centralize all citation definitions in BIBLIOGRAPHY.md (one authored source, all surfaces)
MUST:     Compile BIBLIOGRAPHY.md into REGISTRY.json at build time (machine-readable, _generated)
MUST:     Validate every [X-n], [I-n], [P-n], [B-n], [W-n], [G-n] reference across all writing surfaces
MUST:     Track freshness tier per citation (STABLE, ANNUAL, QUARTERLY, EPHEMERAL)
MUST:     Detect value drift (inline numeric claim vs bibliography value)
MUST:     Fail build on unresolved citations (referenced in surface, not in bibliography)
MUST:     Fail build on namespace collisions (same code, different sources, different documents)
MUST:     Generate per-document reference sections as compiled subsets of bibliography
MUST:     Resolve citations to sources on every surface — WEB (hyperlink), TEX (bibliography entry), PDF (endnote or reference section)
MUST:     Compile citation references into clickable links on WEB surfaces ([X-1] → anchor to reference section with source URL)
MUST:     Compile citation references into LaTeX bibliography entries on TEX/PDF surfaces (no raw [X-1] in output)
MUST:     Resolve Sources table URLs into inline links on first mention in prose (BLOGS, PAPERS)
MUST:     Inline link resolution is compiler-generated from Sources table — not hand-authored
MUST:     Every surface that renders governed prose MUST pass through CITATION validation before publish
MUST NOT: Allow per-document reference tables to be hand-edited (compiled, not authored)
MUST NOT: Publish stale citations past expiry without explicit override
MUST NOT: Duplicate citation definitions across documents (one entry per source, globally unique)
MUST NOT: Hardcode citation mappings (discover via bibliography scan)
MUST NOT: Pass raw citation codes ([X-n], [W-n], etc.) through to any rendered surface — resolve or fail