feat(buglog): one Markdown record per bug, checked against a record standard

The buglog was one 27K-line JSON file whose fields covered only symptom,
root cause and fix, as free text: 2% of entries named the code version a
bug was found on, 12% the build profile, 36% a way to reproduce, and 58% of
the file was OpenWolf hook auto-detections ("Missing guard clause",
"Function not marked async" on .md files).

- .claude/skills/buglog/bug-record.md: the record standard. Eight
  sections (Summary as the title, Description, Environment, Reproduction;
  Root cause, Fix, Verification, References once fixed), each with the
  content it must contain -- e.g. Environment needs the OS, the libc the
  failing binary loads (from its ELF interpreter: glibc 2.42 in the nix
  shell vs 2.40 on the host), toolchain, build profile and commit.
- .wolf/bugs/<id>.md: 500 records migrated from buglog.json; every field
  verified to round-trip. They carry legacy: true and an explicit "not
  recorded" where the old log had no such field; component derived from
  file paths, severity from keywords (else unknown), fix_commits from
  hashes in status_note/fix that git resolves (91 of 463 fixed).
- .wolf/buglog-archive.json: the 710 hook auto-detections, verbatim.
- .wolf/buglog.json is now an index generated from the records, keeping
  the fields OpenWolf's hooks and `openwolf bug search` read.
- scripts/buglog.py rewritten: new (template + Environment collected from
  the machine and --binary), check, status (refuses a status the record
  doesn't support; fixed needs Root cause, Fix, Verification and
  --commit hashes git resolves), note, recur, set, show, list, triage,
  env, index. 29 unittest cases in scripts/tests/test_buglog.py.
- scripts/git-hooks/pre-commit runs `check --staged`: incomplete staged
  records, a legacy record hand-changed to fixed without the fix-time
  sections, a new record claiming legacy: true, or a stale index refuse
  the commit.
- scripts/gitea-sync.py reads the records: issue body = the record's
  sections plus linked fix commits (origin remote, GITEA_COMMIT_REPO to
  override), and a body hash so an issue's text is refreshed when the
  record changes.
- bug-1866 rewritten to the full standard as the worked example.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

.wolf/bugs/bug-1508.md

@@ -0,0 +1,41 @@
+---
+id: "bug-1508"
+status: "fixed"
+status_updated: "2026-09-26"
+status_note: "7723a4f4: worker fetchfile accepts only <dir>/job_<jobid>_task<N>.out for the request's jobid (exact match), O_NOFOLLOW|O_NONBLOCK, regular single-link file. Also closed the REST route (user out_file=/etc/shadow)."
+component: "worker"
+severity: "unknown"
+timestamp: "2026-08-08T00:00:00Z"
+last_seen: "2026-09-19T09:00:00Z"
+occurrences: 1
+files: ["src/worker/src/xcecd_worker.c (handle_fetchfile", "jobs-peek fetchfile feature)"]
+tags: ["security", "path-traversal", "fetchfile", "worker", "jobs-peek", "needs-fix"]
+related: []
+fix_commits: ["7723a4f4"]
+legacy: true
+gitea_issue: 287
+gitea_synced_status: "fixed"
+---
+
+# bug-1508: No user report / no test failure -- discovered incidentally during doc-cleanup fact-check audit of…
+
+## Description
+No user report / no test failure -- discovered incidentally during doc-cleanup fact-check audit of src/docs/job_peek.md against current code.
+
+## Environment
+_Not recorded (migrated from buglog.json)._
+
+## Reproduction
+_Not recorded (migrated from buglog.json)._
+
+## Root cause
+job_peek.md's design called for worker-side security validation on the fetchfile RPC (jobid ownership check, out/err-file path match against the job's actual output paths, path-traversal rejection) before Plan B (CGO/FetchFile) shipped. The validation was never implemented -- handle_fetchfile() opens whatever path it is given with no ownership or path-traversal check.
+
+## Fix
+NOT FIXED -- out of scope for the doc-cleanup task that found it. Flagged to user as a follow-up; needs its own security-reviewer pass on handle_fetchfile() (job ownership check + path-traversal rejection, matching the validation job_peek.md originally specified).
+
+## Verification
+_Not recorded (migrated from buglog.json)._
+
+## References
+- Gitea: #287