Corpus boundary — Wattles v1

Included

• The Science of Getting Rich (1910) — PROOF WORK, corpus assembled
  (sources/sgr_en_units.json: preface + chapters I–XVII, 497 paragraph units,
  Gutenberg #59844; publisher back-matter — the NAUTILUS advertisement and
  transcriber notes after the Summary — is cut in the build, not in the pool). English is the ORIGINAL text, so it is the evidence pool;
  no translation is needed for evidence. RU on the pages is a reading layer,
  marked «перевод наш».

Included separately, marked

• The Preface (section_type: preface) — author self-characterization and the
  named philosophical lineage (Descartes, Spinoza, Leibniz, Schopenhauer, Hegel,
  Emerson). Cited as context, not as soul core.
• The publisher's back-matter (the NAUTILUS advertisement after the Summary) —
  not Wattles' argument; excluded from the evidence pool.

Excluded

• Wattles' other books — The Science of Being Well (Gutenberg #33917) and
  The Science of Being Great — verified PD, not yet fetched. SGR references
  them as "allied sciences"; they get their own corpus when ingested.
• The Nautilus magazine articles ("What is Truth?", 1909) — named in the
  Preface, not in the ingested corpus.
• Later New-Thought reformulations and abridgements (e.g. the 1976 / modern
  self-help repackagings, "condensed" editions) — meme-distorted, no clean
  edition trace; kept out of the evidence pool.
• Quotes attributed to Wattles online without a page in SGR — see
  QUOTE_AUTHENTICITY.md.

Reason

SGR is a single compact, complete published work; it is a stable primary source
and is fully in the public domain (Wattles died 1911). The New-Thought reception
around him is heavily paraphrased and re-titled, so everything without an SGR
edition trace stays out of the evidence pool.