chore: track audit-runs summary artifacts (md/csv/diff/txt/json/etc)

Snapshot of every non-log artifact under audit-runs/ from audits 003
through 058: findings.md per audit, comparison CSVs, probe diffs,
schema docs, register-dump txts, lr-trace JSONL streams, the saved
canary patch diffs, etc. ~284 files / ~52 MB total.

Excluded (per .gitignore): probe stdout/stderr/log streams (the raw
firehose), guest-memory dumps under audit-026/027/029 (4.5 GB of
.bin files; *.bin pattern added to .gitignore this commit).

Also adds the orphan audit-058-sub825070F0-activation directory that
a subagent accidentally created at project-root instead of
under xenia-rs/audit-runs/; relocated to its proper home.

Purpose: cross-machine continuity. With these summaries committed,
a fresh clone gives the next session the full per-audit context
(findings + tables + cascade predictions) without dependence on
local-only working tree.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

audit-runs/audit-037-record-populator/canary-probe-summary.txt

@@ -0,0 +1,27 @@
+=== probing 0x8245d290 ===
+0x8245d290 fires=0
+0
+=== probing 0x8245d300 ===
+0x8245d300 fires=0
+0
+=== probing 0x8244fc98 ===
+0x8244fc98 fires=11
+=== probing 0x82450ec0 ===
+0x82450ec0 fires=31
+=== probing 0x825f1094 ===
+0x825f1094 fires=6695
+=== probing 0x8245d230 ===
+0x8245d230 fires=0
+0
+=== probing 0x8244fc90 ===
+0x8244fc90 fires=11
+=== probing 0x82450b68 ===
+0x82450b68 fires=381
+=== probing 0x825f1000 ===
+0x825f1000 fires=35720
+=== probing 0x824503a0 ===
+0x824503a0 fires=11
+=== probing 0x82459d18 ===
+0x82459d18 fires=0
+0
+ALL DONE