ᑕ. speedrunpapi v0.6.1 — R11 exact mathematics

Eight source-bound bounded mathematical operators in the public hosted-job client, with independent local replay. New cases: cyclic inverse fibers, tap-span fiber counts, affine inverse cells, and two-stage addition codes. Four canonical .math inputs and three genuine production mathematical result bundles are available in examples/. Changed source and forged result fields are rejected. npm and PyPI publish from this tag with pinned workflows. These exact finite-domain scopes do not assert complete source-paper integration or external cash settlement.