malkhut(spec): item 4 — ScenarioLibrary sweep for Mode 1 coverage
ScenarioLibrary sweeps the state space (not samples) across:
- spread_mult: [0.1, 0.5, 1.0, 2.0, 5.0, 10.0]
- depth_fraction: [0.01, 0.05, 0.1, 0.3, 0.5, 1.0]
- toxicity: [0.0, 0.3, 0.7, 1.0]
- regime: [normal, crisis, recovery, transition]
Default: 13 assets × 576 grid points = 7,488 scenarios.
Customizable: specify symbols, dimensions, ranges.
7 tests covering: grid size, sweep output, point fields,
regime coverage, custom dimensions, summary, factory function.
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