Continue PR #207 from d79fe15ae0feabf0f0529332526e1812e16e0312. Consume Rule C in Fable's PR #208 at 0eb39186334612b3e55db315758c49ab87a29763 without editing its files.
At N=10000,y=100 let U be one copy of every real-mass profitable fold above 100. Independently verify the coordinator's fixed bundle 2U+57F163+7F232+5F270+74F434+40F625+22F1250+12F2500+4F5000. Determine whether a concrete decomposition satisfies the existing repair lemma, with explicit parameters and accounting for the seed credits at empty cells 54 and 62. If sufficient hypotheses fail, identify them precisely. Direct net-capacity proof is permitted; no new abstract lemma without application to this bundle.
Ownership: new notes, exact checks, result file and focused test in this lane, plus generated CONTEXT.md. Preserve prior outputs. Fable owns the construction and explanation of Rule C. No bundle search, LP, larger-N batch, background research job or new lane. Use one numerical thread. Commit and push to #207 and leave both PRs open, without merging.