[timohuovinen]

…query text

sqlc's database analyzer names types the way format_type prints them (integer, boolean, timestamp(3) with time zone, numeric(12,2)); the type tables only knew the pg_type names, so those parameters and computed columns fell back to string, and postgres.js sends a string given for a boolean parameter as false. Both spellings now map to the same type in the postgres and pg drivers, modifiers dropped.

• Enum types become string literal unions, from the catalog.
• postgres driver: date and timestamp parameters take Date | string.
• The query is emitted as a template literal with backslash, backtick and ${ escaped, so '\%' reaches the database as written.
• Each query file is emitted once instead of once per query.
• Code generation moves to src/codegen.ts so tests run it under Node: npm test (no database) and npm run test:postgres (analyzer-generated code run with postgres.js); CI runs both against PostgreSQL 17.
• A vX.Y.Z tag publishes the WASM as a release asset with its sha256.