/cass-coverage — Capture Dashboard Builder

Audit how much of recent coding-agent work (Claude Code, Codex) is captured by Leviathan workstreams. Produces a navigable HTML dashboard backed by a canonical coverage.json artifact.

Architecture (data ↔ view split)

.lev/pm/captures/dashboard-<window>/    ← per-window output (gitignored if you commit captures elsewhere)
├── dashboard.html                      ← copy of viewer/dashboard.html (≈40 KB, no data)
└── coverage.json                       ← canonical artifact, ≈3 MB, schema-d (git-trackable)

~/.cache/cass-lev/<project>/            ← XDG cache, machine-local, never in repo
└── <chain-id>/<session-id>.html        ← cass-baked transcripts (≈100 MB+ total)

~/.claude/skills/cass-coverage/
├── viewer/dashboard.html               ← single-file vanilla-JS viewer (fetches coverage.json)
├── schema/coverage.schema.json         ← JSON Schema 2020-12
└── scripts/                            ← inventory → merge → classify → bake → render