ember.rs: CLOCK_FLOOR_PCT 45 -> 20 (the PC 1 passes of 7 October: the 5090's best MH/W at 1,200 to 1,300 MHz, 39 to 42 percent of 3,090, under the old floor), CLOCK_FINE_STEP_MHZ 100, Plan.clock_fine, Plan::cap_row, Plan::clock_stop_reason ("rate fell 5.2 percent at 1200 MHz", "fingerprint mismatch at 2163 MHz, clocks reset", "the floor at 700 MHz"), the stop rule in Plan::next, LockResult + lock_result (lock_mhz/mhs/w/mhw, unlocked_mhs/w, lock_note; "no lever" without a clock maximum). state.rs: CardState lock_mhz, lock_mhs, lock_w, lock_mhw, unlocked_mhs, unlocked_w, lock_step, lock_steps, lock_at, lock_note. engine.rs: sweep_finish fills them (Baseline: "no lever" on Apple or without a maximum clock), the progress tick fills lock_step/lock_steps while a clock step runs. Tests: the ladder to the floor (2,781 .. 1,390, 1,300 .. 700), the knee at 1 and 1.5 percent on the measured 5090 rows (1,854 and 1,300 as the points), a Faulted clock row ends the search and the note says so, and the Run-level fake helper: a mismatch during 2,163's hold -> the row Faulted, no next step, the final Apply is the chosen 2,472 (the reset), Finished; the existing full-plan test updated to the stop rule. The 18 Ember tests green on box 2.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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