Adds 10-06-PLAN.md covering KEY-05 (F-10a / R-16). 10-01..10-05 untouched.
Six tasks, sequenced so CI stays green at every intermediate commit:
classify all 43 call sites with file:line evidence; a tracer that wires the
sealed KeyGenRng allowlist, the degenerate-entropy predicate and the CSPRNG
readiness ledger end-to-end through the mnemonic seam; two migration tasks;
a blocking human checkpoint for cargo-deny scope and legitimacy; then the
gates are enabled last and observed failing a real build.
The clippy ban is a compile failure under the existing -D warnings CI step,
so core/clippy.toml is deliberately not committed until every site --
including test code, since --all-targets counts it -- has migrated.
Wave 2: shares seed.rs with 10-05 and api/rpc/auth.rs with 10-01.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
