Changes touching this path

• the open two biggest arms become COUNTABLE, so a regression in them can fail a land instead of passing all three checks: store.rs held no instrumentation whatsoever, no Work, no tally, no bump - and that NEGATIVE was re-verified before anything was built on it, because a negative that has quietly become false is exactly how this class of blindness starts. every line number had moved and every one is re-derived: the graph read at 2200 rather than 1993, the keyring read at 2228 rather than 2019, the two call sites at 4467 and 4510 rather than 3468 and 3502. the unit is READS, one counter rather than a pair, and the reasoning is recorded rather than assumed. a byte count is NOT 0%-gatable here, being a function of fixture contents and encoding, so every format change would fail a land for a reason its author cannot act on - and tolerancing it instead re-creates precisely the load-sensitive alarm ADR 0073 rejected the timings for. at this seam a byte count would also be blind to its own stated reason, since the lazy half of #1536 already landed and read_graph_required still reads the file WHOLE while deferring the per-change manifests, so bytes READ did not move for #1536 and will not, while bytes DECODED are a different counter at a different seam whose value depends on which manifests a verb happens to touch. the object pair precedent does not transfer either: those are two because a MEMO sits between them, and nothing analogous splits a metadata read. disjointness is BUILT rather than assumed, because object files are whole files in the store too - the object store now reads through its own door, same body, same retry budget, no tally - and the two of that door four sites which tally NOTHING today are named in the code and deliberately left alone, since closing that gap would move an already-gated number. the tally sits OUTSIDE the retry loop, because inside it would count attempts and read 1 idle against 17 busy, and that placement is pinned DETERMINISTICALLY rather than by timing luck, since an absent path walks the whole budget by construction. the structural-zero bar is met by SHAPE rather than by not-zero: across a tenfold fixture the object counters go 60 to 600 and 20 to 200 while the store counter STANDS STILL AT 24 - per-open and not per-object - and no tally left on the object door, nor one that had picked up a per-path read, can produce that pair of lines. four mutations with counts read, and the discrimination one is a discrimination rather than a constant because it ALSO fails the excluded-counters pin, catching it from both directions. the gate was then run for real in a release build: exit 0, the workload id UNMOVED so no baseline is orphaned, and the new metric absent from the baseline, so the first armed land records it and the land after that is armed. and ADR 0073 consequence clause is amended exactly where it read as full coverage, with the correction stated in as many words, alongside its table row, its status header, and six other surfaces carrying the same claim (#1662) 904f6996 · dbf3dbe6…

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