Codegen sync API and all enums

[andrewbranch]

This PR replaces the sync API types, implementation, tests, and benchmarks with ones generated from their async counterparts.

It also generates all the TypeScript enums used in the packages from the Go source.

[Copilot]

Pull request overview

This PR introduces comprehensive code generation infrastructure to automatically generate the sync API and all TypeScript enums from their source counterparts. The sync API is generated from async API source files using directive-based and AST-based transformations, while TypeScript enums are generated from Go source constants. This significantly reduces manual maintenance burden and ensures consistency between implementations.

Changes:

• Implements sync API codegen from async source using directives (@sync:, @sync-skip) and AST transforms (removing async/await, unwrapping Promise<T>)
• Implements enum generation from Go const blocks to TypeScript, with topological sorting to handle forward references
• Reorganizes file structure: moves enums to src/enums/, removes src/base/ directory, consolidates imports using wildcard patterns

Reviewed changes

Copilot reviewed 49 out of 49 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
_packages/api/scripts/generate-sync.ts	New codegen script that transforms async API to sync using directives and AST manipulation
Herebyfile.mjs	Adds generate:enums task to parse Go const blocks and generate TypeScript enums with dependency resolution
_packages/api/src/sync/api.ts	Generated sync API with async/await removed, Promise types unwrapped
_packages/api/src/sync/types.ts	Generated sync type definitions
_packages/api/src/sync/client.ts	Sync client with socket check, synchronous request methods
_packages/api/src/enums/*.ts	Generated enum files from Go source with auto-generated headers
_packages/api/package.json	Updated with generation scripts, wildcard import maps for enums
_packages/api/test/sync/*.ts	Generated sync tests and benchmarks from async source
.github/workflows/ci.yml	Added enum generation and sync API generation steps to CI
internal/api/callbackfs.go	Refactored null check logic to be more concise

[jakebailey]

Nice!