Add IFS and CMN reference evidence

[iskandr]

Summary

• add CMN as a canonical, non-classifying entity and expose public Treehouse PolyA/RiboD and GSE11482 physical source evidence without pooling protocols
• add donor-aware sample provenance and structured heterogeneous IFS/CMN driver spectra; diagnosis-only samples remain molecularly unknown
• use one assay-independent technical-RNA gene set for every assay and replace its clean-TPM composition with a fixed Treehouse PolyA profile
• rebuild all expression artifacts under sample-QC v3 and make source selection authoritative rather than gene-count-driven

Controlled EGA, St. Jude, and CCDI expression remains explicitly access-required. Public sample-level molecular annotations are included where available; no controlled expression or fusion calls are inferred. GSE11482 remains a non-linear, rank-only TPM proxy and is never claimed to be absolute RNA-seq TPM.

Releases

• source matrices: source-v5.22.10 (133 validated assets)
• derived bundle: v5.23.17
• package version: 1.8.171

Verification

• 1035 passed in 56.55s
• Ruff lint and changed-file formatting pass
• MkDocs strict build passes
• sdist and wheel build successfully
• all four IFS/CMN public physical-source views load through cancer_reference_expression

Closes #473
Closes #474
Closes #475