v0.1.0

First versioned history. Nothing before this tag was published or tagged.

Added

• Neuromodulatory adaptation in ChannelRouter — NeuromodState (cortisol,
  dopamine, serotonin), route_modulated(), apply_plasticity(), per-channel
  fatigue, use-it-or-lose-it plasticity.
• Generic ChannelRouter with configurable channel count.
• CSR sparse synaptic maps, topology generators (small-world, scale-free,
  random, layered), temporal delay ring-buffer, Dale's law wiring.
• CI: GitHub Actions workflow (.github/workflows/ci.yml) running
  cargo fmt --check, cargo clippy -D warnings, cargo build, and
  cargo test on every push/PR to main.
• MSRV pin 1.97.1 in Cargo.toml rust-version, rust-toolchain.toml,
  and CI (dtolnay/rust-toolchain + pin-agreement check).
• PartialEq on SynapticGraph and SynapseDescriptor, plus a JSON
  serde round-trip test.
• inhibitory_fraction range validation to all topology generators
  (generate_random, generate_small_world, generate_scale_free,
  generate_layered) — rejects values outside [0, 1].

Changed

• License: Dual MIT OR Apache-2.0. SPDX identifier added to all source
  files.
• apply_dale_polarity (topology::wiring_rules) returns
  Result<Vec<Polarity>, MeshError> instead of Vec<Polarity>. Out-of-range
  inhibitory_fraction values (< 0 or > 1) are rejected with
  MeshError::InvalidConfig.

Removed

• AhlRouter — use ChannelRouter with RouterConfig::default().
• AHL_NUM_CHANNELS — default channel count is RouterConfig::default().channel_count (3).
• TelemetrySnapshot — use NeuronStateSnapshot.
• NeuronStateSnapshot::quant_bonus — use NeuronStateSnapshot::error_bonus.
• NeuronStateSnapshot::quant_error — use the error field.
  The serde alias = "quant_error" on error is kept so older snapshots
  still deserialize.

Fixed

• Test: mesh::tests::layered_mesh_feed_forward — the test now models
  multi-hop propagation by thresholding received currents back into spikes
  (matching the documented one-hop propagate() semantics).
• Underflow: SynapticGraph::validate_descriptor_indices used
  neuron_count - 1 which underflows on neuron_count = 0. Now uses
  saturating_sub(1).
• Consistency: apply_feedback and sync_baseline_after_feedback now
  consistently use self.config.channel_count (matching all other methods)
  instead of self.neurons.len(). apply_feedback retains a double-guard
  for Codacy HIGH RISK out-of-bounds protection.
• Defensive: sync_baseline_after_feedback inner-row length check
  converted to debug_assert! documenting the call-ordering invariant
  (ensure_neuromod_state_synced rebuilds baseline_weights beforehand).
• Zero-size layer validation in generate_layered now rejects &[0, 5]
  via layer_sizes.contains(&0) with a clearer error message.

Internal

• Resolved clippy warnings (RangeInclusive::contains, iterator idioms,
  derivable impls, redundant borrows).
• Fixed cargo fmt formatting (module ordering, debug_assert wrapping).