Chia-Network / chia-blockchain / 40552540528

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github

Committed by web-flow

Commit Message

[CHIA-4468] Bump chiars 0.52.0 (#21522)

This PR is best reviewed one commit at a time.

This is a major update for the 3.0 hard fork. The main changes (once
activated) are:

* the transactions_generator is using a much more efficient
serialization format (faster to serialize/deserialize and higher
compression/deduplication)
* the `generator_root` field is the *tree hash* of the
transactions_generator, not a hash of the serialized bytes.



<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> **High Risk**
> Changes consensus rules for transaction generator encoding,
commitments, costing, and mempool block assembly at hard-fork
activation; incorrect behavior would reject valid blocks or accept
invalid ones.
> 
> **Overview**
> Bumps **chia-rs** to 0.52.1 and CI test plot artifacts to **0.45.46**,
wiring in the 3.0 hard-fork transaction generator changes from that
release.
> 
> After **INTERNED_SPEND_LIST** activates (keyed on pre-signage-point tx
height), blocks use **version 1** with a **serde_2026** spend-list in
`transactions_generator_buffer`, **`generator_root` as
`tree_hash_2026`** (not `std_hash` of raw bytes), and **interned
vbytes** for size/cost instead of classic CLVM generator execution.
Consensus paths (`block_body_validation`, `blockchain`,
`multiprocess_validation`, `block_creation`, full node) now go through
**`compute_generator_root` / `validate_generator_root`**;
canonical-encoding checks are skipped for interned generators.
> 
> The **mempool** builds blocks with **`InternedBlockBuilder`** and
**`solution_generator_2026`** when the flag is on;
**`simple_solution_generator`** and simulator **`BlockTools`** follow
the same rules, including generator caching and cost computation. APIs
pass raw generator **bytes** into chia-rs instead of wrapping in
`SerializedProgram`.
> 
> Tests add **`test_block_generators.py`**, refresh expectations for HF3
costs/mempool capacity, re-enable on-disk chain validation in
**`test_build_chains`**, and adjust plot-ca... (continued)

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