The server never created a database or instantiated repositories, so all
tRPC procedures requiring initiativeRepository (and other repos) threw
"Initiative repository not available" on every request.
- Create ensureSchema() for shared database table initialization
- Extend TrpcAdapterOptions to accept all repository/manager dependencies
- Add ServerContextDeps to CoordinationServer for dependency injection
- Wire database, schema, and repositories in CLI startServer()
- Refactor test-helpers to use shared ensureSchema()
cbf0ed28cb