feat(asap-tools): seed fake exporters per instance

[milindsrivastava1997]

Summary

• Add configurable --seed support to the Rust fake exporter.
• Derive distinct reproducible seeds for each worker/port exporter instance.
• Wire the seed through bare-metal, containerized, generated Compose, and generated experiment-config paths.
• Document the experiment configuration and CLI usage.

Seed assignment

Each exporter receives:

base_seed + worker_ordinal * num_ports_per_server + port_ordinal

Existing configurations default to base seed 0.

Validation

• Rust cargo check: passed.
• Python syntax and mocked bare-metal/container command wiring checks: passed.
• Commit hooks: formatting, linting, Cargo check, and Clippy passed.
• The full repository cargo test hook was skipped because three unrelated asap-query-engine/tests/e2e_precompute_equivalence.rs tests currently fail; the other suites shown by the hook passed.