The first night the default fabric is the wrong answer, tuned by measurement
through the real chain (gardenfly, dressed anchors, funnel ON, post-ruling
tree): bare 17.5 DEAD, best cloth line 42.3 TATTERED (a loss at any price),
same $75 ring on membrane 96.5 FULL, $60 ring 68.8 FULL — one key, Δ54.2 HP.
Membrane on $20 carabiners inverts (19.1 < 24.5): the doubled load is real.
Measured over backyard_01 too: its geometry caps hail cover at ~31%, so the
night only works on site_02 — the pairing receipt for D. tools/fabric_bet/
probe.html is the measurement harness; flyGarden grows an additive porosity
opt (default 0.30 unchanged — B: contest at integration if wanted).
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