tests: futures and forex captures move to the private fixtures (US-SCOPE-1300, part 2) - #386

Part 2 of #382 (US-SCOPE-1300). Two commits:

tests: fourteen engine test files and a data header of futures and forex captures move to the private fixtures; one row joins the private rows (US-SCOPE-1300, part 2)

Owner ruling 2026-10-13: recorded market data of US futures, forex and spot metals is never public. Fifteen files leave the public tree for the private
fixtures repository (byte-exact copies, commit cb5e0c2638b8 on top of da6ad27; sha256 of every copy read back): tests/test_famag_close_survives.cpp and
_l4d, test_htf_weekly_lookahead.cpp, test_trail_close_restart_no_fold.cpp and _l4c, test_tv_money_precision.cpp and _l4b, test_tv_money_carried_pooc.cpp and
_l4b, test_tv_money_band.cpp and _l4b, test_market_admission_commission.cpp and _l4b, test_ta_sma_stochrsi_ties.cpp and test_ta_sma_stochrsi_ties_data.hpp.
Their tests pin floating-point residues of recorded captures (ulp directions of tick products, ten-digit money boundaries, crossover ties), so they are moved,
not rewritten: an invented series would need its own independently justified oracle.

Registration (the #375 way): seven of the rows were already private rows gated on a private data header (famag_close_survives_l4d, htf_weekly_lookahead,
trail_close_restart_no_fold_l4c, tv_money_precision_l4b, tv_money_carried_pooc_l4b, tv_money_band_l4b, market_admission_commission_l4b): their gate and their
recorded source-bound entries stay as they are, the overlay restores the .cpp beside the header. The six base files have no row (retired through
L3A_LEGACY_OWNER_TEST_SOURCES): their sources leave and the names stay in that list. test_ta_sma_stochrsi_ties was a public, source-free row: it leaves
TEST_SOURCES and registers like test_ta_window_round10 (the real test when the overlay supplies tests/test_ta_sma_stochrsi_ties.cpp, the pinned SKIP placeholder
otherwise). Pins: tests/private_fixture_rows.txt 374 -> 375 rows (and PRIVATE_FIXTURE_ROW_COUNT), tests/private_fixture_paths.txt +15 F lines (10,221 files,
12,925 paths). Floors: release private count 306 -> 307 (absent floor 604 -> 603), kernel private count 30 -> 31 (the row is source-free; absent floor
307 -> 306); the full totals 910 and 337 are unchanged.

Doc sentence reworded, named here for the doc-revert gate: "The full-run release and kernel floors are the table's own numbers above (604 and 307 rows
absent, 910 and 337 with the overlay present); full runs do not exclude a label." now says 603 and 306 for the absent floors; the two cells of the floor
table in docs/ci.md change the same way (604 -> 603, 307 -> 306).

Gates that carried the old numbers move with the floors: scripts/test_ci_verify.py (the literal pins (910,307)/(337,31) and absent floors 603/306, the kernel
absent scenarios with 31 pinned rows, the explicit --min-tests 306 case, the shrunken release registry 900/298 -> 602 which still fails the 603 floor, the
comments of the one-row-ran and websocket cases) and tests/private_fixture_reads.evidence (the CMake lines it cites moved by -1: 3251 -> 3250, :3271 -> :3270,
:3235 -> :3234, :3247 -> :3246, :3277-3278 -> :3276-3277); a comment in tests/CMakeLists.txt that cites the two gate suites follows (:2215/:2217 -> :2214/:2216).

None of our release-built assets contains these files (the prebuilt tarballs are cmake --install with PINEFORGE_BUILD_TESTS=OFF); only GitHub's automatic source
archive carries tests/. Git history is not rewritten (owner ruling 10-11). Not run locally (no suites on the Mac); the two-world proof runs on lab remote.

docs: two pages stop citing the two admission tests that moved to the private fixtures (US-SCOPE-1300, part 2)

The first release-and-preflight run of part 2 (lab job p382p2-absent: release and kernel passed) failed the doc-lint dead-path rule at four citations of
tests/test_tv_money_precision_l4b.cpp and tests/test_tv_money_band_l4b.cpp, which part 2 moved out of the public tree. The two pages now say what those tests are instead of
naming a path that no longer exists.

Sentences reworded, named here for the doc-revert gate:

• docs/pages/native-engine.md: "(the famr / famr3 tapes of tests/test_tv_money_precision_l4b.cpp and tests/test_tv_money_band_l4b.cpp)" now reads "(the famr / famr3
  tapes of two tests that live in the private fixtures)".
• docs/design/native-feature-parity.md, row SZ10a: "pinned by 445 famr3 tapes (tests/test_tv_money_band_l4b.cpp) and 202 famr tapes
  (tests/test_tv_money_precision_l4b.cpp)" now reads "pinned by 445 famr3 tapes and 202 famr tapes (two tests that live in the private fixtures)".
  The tape counts and every other word of both sentences are unchanged. scripts/check_doc_lint.py reports 0 offenders on this tree.

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