Prior spacing pass may have separated this phrase.

from research import *
s=begin(824,'Finalize the integrated synthesis','Does the final account preserve each reviewed construction and its limit?',{},['C821 draft; final independent draft review'])
doc=(ROOT/'drafts/Integrated_Synthesis_C821.md').read_text()
doc=doc.replace('It is a separately declared comparison object;','The2649/2049 values are source-implied comparison coordinates; the controlled BJ Shem2650/2050 states remain distinct. It is a separately declared comparison object;')
doc=doc.replace('while retaining the earlier1950.','while retaining the earlier1950. The resulting path is1950+500=2450: the40-year gain supplies the existing wilderness completion, which is not added a second time.')
# Prior spacing pass may have separated this phrase.
if 'the40-year gain' not in doc:
    doc=doc.replace('while retaining the earlier 1950.','while retaining the earlier 1950. The resulting path is1950+500=2450: the40-year gain supplies the existing wilderness completion, which is not added a second time.')
import re
doc=re.sub(r'\b([a-z]{2,})(?=\d)',r'\1 ',doc)
for name in ['BJ','Shem']:doc=re.sub(r'('+name+r')(?=\d)',r'\1 ',doc)
fig='![Chronological families: shared source paths and different measurements](sandbox:/workspace/scratch/1b40da62dcbd/c732_c831/deliverables/490d_Chronological_Families_Map_C831.png)\n\n'
doc=doc.replace('## The family map',fig+'## The family map')
doc+='\n## Evidence and source control\n\nThis synthesis continues the C731 foundation and incorporates cycle C732–C831. Its tables and generated fields are reproducible in the accompanying step record and evidence packet. The exact local source snapshots are retained there. Latest File_52c remains the controlling inverse draft (SHA256 a5ea84562101158b60d0cf296765d6eff38e7a2abda4e74ad1b353dfd13b9530). Supplied sources were not rewritten.\n\nThe cycle’s reconstructed fields are dependent consequences of frozen inputs, not an independent-success tally. The present explanation establishes mathematical relationships within the supplied research model; it does not establish the historical origin of its numbers or remove the stated source tensions.\n'
a=artifact('deliverables/490d_Chronological_Families_Integrated_Synthesis_C831.md',doc)
finish(s,{'synthesis':a,'word_count':len(doc.split()),'final_review':'no numerical corrections; completion and comparison-state wording clarified'},'The final synthesis leads with the constructive family explanation and retains the exact role qualifications where they matter.','Write the short reading guide so the larger result is accessible without the research ledger.',{'completion_not_double_counted':'not added a second time' in doc,'comparison_role':'source-implied comparison coordinates' in doc,'figure_embedded':'490d_Chronological_Families_Map_C831.png' in doc})