computer: trying the new stateful

crates/brk_computer/src/stateful/compute/mod.rs

@@ -0,0 +1,33 @@
+//! Block processing pipeline.
+//!
+//! This module handles the main computation loop that processes blocks:
+//! 1. Recover state from checkpoint or start fresh
+//! 2. Process each block's outputs and inputs
+//! 3. Update cohort states
+//! 4. Periodically flush to disk
+//! 5. Compute aggregate cohorts from separate cohorts
+
+mod aggregates;
+mod block_loop;
+mod context;
+mod flush;
+mod readers;
+mod recover;
+
+pub use block_loop::process_blocks;
+pub use context::ComputeContext;
+pub use readers::{
+    IndexerReaders, VecsReaders, build_txinindex_to_txindex, build_txoutindex_to_txindex,
+};
+pub use recover::{
+    StartMode, determine_start_mode,
+};
+
+/// Flush checkpoint interval (every N blocks).
+pub const FLUSH_INTERVAL: usize = 10_000;
+
+// BIP30 duplicate coinbase heights (special case handling)
+pub const BIP30_DUPLICATE_HEIGHT_1: u32 = 91_842;
+pub const BIP30_DUPLICATE_HEIGHT_2: u32 = 91_880;
+pub const BIP30_ORIGINAL_HEIGHT_1: u32 = 91_812;
+pub const BIP30_ORIGINAL_HEIGHT_2: u32 = 91_722;