registry: extract agent and operation modules

TASKS.md

@@ -2,18 +2,18 @@
 
 ## Current
 
-### `feat/postgres-registry-modularization`
+### `feat/sqlx-compile-time-verification`
 
 Status: in_progress
 
 DoD:
-- `crates/crank-registry/src/postgres.rs` is split into domain modules under `postgres/`
-- `PostgresRegistry` keeps only constructors and high-level surface wiring
-- existing registry tests still pass after module split
+- the highest-risk registry queries use `sqlx::query!` / `query_as!`
+- compile-time SQL verification is enabled in normal backend workflow
+- runtime-only queries remain only where dynamic SQL is truly required
 
 ## Next
 
-- `feat/sqlx-compile-time-verification`
+- `feat/typed-timestamps`
 
 ## Backlog