repro_issue581 was a FALSE GUARD. A 3-node fixture over 150 search_graph calls
cannot move process RSS (observed factor=1.00), so rss_end <= 3.0x rss_warmup
passed even on the leaking build, and an explicit PASS() escape fired when RSS
read 0. #581 is OPEN: there is no SQLITE_CHECKPOINT_TRUNCATE anywhere and
cbm_mem_collect is never called in the query path (only after index/delete). The
green was a lie. Replace the vacuous assertion with an honest FAIL that documents
the leak is unfixed and not reproducible in this tier (needs a real
WAL/committed-pages reproduction tier plus the fix).
repro_issue431 is actually FIXED: install_vscode_profile_configs (cli.c:3211)
scans Code/User/profiles/ and plans a per-profile mcp.json, and the test passes
via the real assertion. Its detection-unmet branch returned a VACUOUS PASS that
would hide a future regression; change it to SKIP_PLATFORM so a host where
detection cannot fire is honestly inconclusive, not falsely green.
Repro board: 311 passed, 1 failed (the honest #581 RED).
Signed-off-by: Martin Vogel <martin.vogel.tech@gmail.com>