Replace the two cell-polity crosswalks with the polycell, and move the area denominators onto it - #619

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edu/polycell-spatial-support

Commits on Aug 4, 2026

Add a diagnostic that re-derives the polycell preflight evidence

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02c2c84
Specify build_polycell_support() with failing tests

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83bb793
Note what the polycell spec deliberately leaves open

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03e250a
Implement build_polycell_support() core polygon producer (T-A4a)
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8b1e772
Finish the polycell producer: real layers, interval grain, shim (T-A4)

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8439578
Cover the whole domain in the unassigned diagnostic (T-A4)

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5886f93
Measure the clip pieces s2 cannot read instead of dropping them (T-A4)

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b2d8d22
Pin what the consumers do today before migrating them (T-A5 C0)

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4765c98
Unbreak the ice path and close three silent loss paths (T-A4)

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7ef0145
Report the water-footprint gap the diagnostic actually measures (T-A4)

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10a5c92

Commits on Aug 5, 2026

Make the polycell tests able to fail (T-A4d, incomplete)

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7298e60
Kill the four surviving mutants and pin the two equivalent ones (T-A4d)

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978e682
Fix the dead gap helper and the interval-summing S-A2 gate (T-A4d)

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c97e8ca
Say what the antimeridian latitude bound actually does

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f81bf4d
Merge main into edu/polycell-spatial-support

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8736ea5
Re-express the C0 urban fixture in the area-code vocabulary main now requires

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993e601
Resolve the year with an exclusive end_year in the two live epoch resolvers

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f767503
Let a still-open interval cover its terminal year (DA-24)

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6fa90e4
Resolve the polycell year with the package's own open-end predicate (DA-24)

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0dbc9c4

Commits on Aug 6, 2026

Split the deposition cell mass by polycell territory (C3a)

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d94444e
Split the deposition mass over land, water and ice, and scope the ledger (C3b)

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2287ad2
Merge origin/main, take #577's fenceposts, re-land the same-polity dedupe

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b778cc1
Let a live interval win a shared start year (DA-29)

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b058938
Move the carbon path onto the polycell's measured land (C7, DA-26)

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0477a4d
Weight the synthetic-N grid split by the polycell's land (C5)

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b6b36e9
Refuse a centroid grid and enforce polycell keying (C8, T-A6)

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de9867a

Commits on Aug 7, 2026

Remove the DA-13 transitional shim (C9, T-A5)

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e5871e4
Reconcile polity areas against FAOSTAT, and attribute every gap (T-A7)

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7d1858d
Document the polycell contract and fix the diagnostic (T-A8, T-A12)

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1c7edf8
Reconcile the polycell branch with main a second time

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79d1ec3
Re-pin the polycell census against the 749-row polity table

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31445c7
test(polycell): assert the piece property, not which engine measured it

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9da8991
test(polycell): pin census to snapshot identity
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ca7ee33
fix(polycell): normalize polygonal intersections
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075ccfd
Merge remote-tracking branch 'origin/main' into edu/polycell-spatial-support
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7e8def1
test(polities): repin refreshed snapshot assertions
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90e5907
fix(polycell): restore scalar intersections without idx
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e6639d6
fix(polycell): recover intersections without source indices
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ce36fe0
style(polycell): shorten intersection helper name
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202e5d6

Commits on Aug 10, 2026

Merge origin/main into edu/polycell-spatial-support (fourth reconciliation)

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94ad83b
test(merge): close the four semantic conflicts the textual merge left green

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8cb6aea
Merge origin/main into edu/polycell-spatial-support

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2894f3f
Move the GLWD water layer onto the official download and fix its coastal inflation
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e1dce5e
Merge main, publish the polycell support pin, and default the grid to it

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6cf4a94
Merge edu/polycell-spatial-support: keep the upstream fix for each shared defect

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829783b
Merge origin/main: take the join ratchet's second fall, add this branch's one row

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a4b0025

Commits on Aug 11, 2026