Add ReadParams { speed: SpeedPref, fua: bool, timeout: TimeoutPref } and
thread it through read_span so every wedge-safe handler read can request a
spindle speed (SET CD SPEED issued only on change, restored to max when the
handler exits), set the READ(10) FUA bit, and pick the 10s vs 60s timeout.
- SectorSource gains read_sectors_fua (default ignores fua); Drive sets the
CDB bit, DecryptingSectorSource threads fua to its inner read.
- recovery_read gains a fua param.
- Linear becomes { direction, params }; Bisect/Jump take params. Existing
tier-0/1 instances keep identical behavior (max speed, no FUA, fast/deep).
- Scoreboard keys on the full-config String name (linear:fwd:max:fast, ...).
- FakeDisc observes speed + FUA + approach so specialist techniques are
provably exercised in later commits.
cargo test -p libfreemkv green (2193 passed).
Matthew Jackson
0c8153304e