All database counts verified against disk baselines: 109 source files,
85 test files, 3673 features, 3257 tests, 36 library imports. Zero
orphaned or dangling records. No circular dependencies.
Run Go AST analyzer against nats-server source, populating porting.db
with 12 modules, 3673 features, 3257 unit tests, 11 inter-module
dependencies, and 36 external library imports.