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-020/scan.json

@@ -0,0 +1,92 @@
+{
+  "targets": [
+    "0x822919c8",
+    "0x82293448",
+    "0x82288028",
+    "0x82292d80",
+    "0x822851e0",
+    "0x82286bc8"
+  ],
+  "all_hits": [
+    [
+      "0x822919c8",
+      1198144,
+      "0x82124840",
+      ".pdata",
+      true
+    ],
+    [
+      "0x82293448",
+      1198344,
+      "0x82124908",
+      ".pdata",
+      true
+    ],
+    [
+      "0x82288028",
+      1196632,
+      "0x82124258",
+      ".pdata",
+      true
+    ],
+    [
+      "0x82292d80",
+      1198296,
+      "0x821248d8",
+      ".pdata",
+      true
+    ],
+    [
+      "0x822851e0",
+      1196096,
+      "0x82124040",
+      ".pdata",
+      true
+    ],
+    [
+      "0x82286bc8",
+      1196408,
+      "0x82124178",
+      ".pdata",
+      true
+    ]
+  ],
+  "data_hits": [
+    [
+      "0x822919c8",
+      1198144,
+      "0x82124840",
+      ".pdata"
+    ],
+    [
+      "0x82293448",
+      1198344,
+      "0x82124908",
+      ".pdata"
+    ],
+    [
+      "0x82288028",
+      1196632,
+      "0x82124258",
+      ".pdata"
+    ],
+    [
+      "0x82292d80",
+      1198296,
+      "0x821248d8",
+      ".pdata"
+    ],
+    [
+      "0x822851e0",
+      1196096,
+      "0x82124040",
+      ".pdata"
+    ],
+    [
+      "0x82286bc8",
+      1196408,
+      "0x82124178",
+      ".pdata"
+    ]
+  ]
+}