125 shims carried private copies of the same small helpers (put_vec, st,
nl_status, Rd, dump_crv, read_nurb, ...). Move the most common, byte-identical
form of each into three headers grouped by the upstream API they need, and have
those shims pull them in with `using sc::<name>;`. Shims with a different
variant keep their own copy; files touched by open PRs are left alone.
`the_context()` stays per shim (its function-local SmContext must not be shared).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FBLgPenT24P1dunqnZR1Dj
SmApiBrep.cpp boolean entry points: SmApiBoolean, SmApiBooleanUnion/
Difference/Intersection/Merge, SmApiMergeBreps, SmApiBooleanWithOptions,
SmApiBooleanLists, SmApiBooleanTrees and their static validators. Input
validation is compared against the C++; everything past it reaches SmMerge
and is deferred (boolean.merge_p2, boolean.merge_p3). Co-ports
SmMergeOptions into boolean::merge::p1.
difftest: cases=284 passed=142 failed=0 deferred=142
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01BY8UpXKuMci15rAWGXsbsm
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