v1.8.32 — archive directory is the file type

The archive directory is now the file type, and a validator check that cannot run no longer reports a pass (#464, docs/specs/archive-name-collisions.md). Final Work Logs live in .agentcortex/context/archive/; archive/work/ holds /handoff compaction fragments, which can share a final log's name.

• D4 (INDEX.jsonl referenced logs) looks in the archive root only. Before, a same-named compaction fragment hid a missing final log and the check passed.
• D4 tells the truth when it cannot run. A Python child that fails is a WARN in both validators (validate.sh used to stop under set -e before printing its Summary), and a run without Python is a SKIP instead of no line at all.
• The archived-Work-Log Phase-Summary scan reads the archive root only, so compaction fragments no longer need a ## Phase Summary to stay quiet.
• Same-day archive names. /ship never overwrites an archive: a second ship on the same day under a reused key such as main archives to <worklog-key>--2-<YYYYMMDD>.md. /handoff compaction appends to its fragment instead of overwriting it.
• append_chain_entry.py refuses a log already recorded for a different INDEX entry and names the next free --N- name. Re-running the identical entry (a retried ship) is accepted as already recorded.

Upgrade note: if your INDEX.jsonl names a final Work Log that sits under .agentcortex/context/archive/work/ (archives written before #106), validate now WARNs INDEX.jsonl referenced logs not in the archive root and names the file. Move it with git mv .agentcortex/context/archive/work/<file> .agentcortex/context/archive/<file>; the INDEX entry needs no change.

Downstream delta: adopter-facing files changed: .agent/workflows/ship.md, .agent/workflows/handoff.md, .agentcortex/bin/validate.sh, .agentcortex/bin/validate.ps1, .agentcortex/tools/append_chain_entry.py, .agentcortex/docs/guides/token-governance.md, plus the version banner in .agentcortex/bin/deploy.sh. The SSoT template is unchanged.