RUDPFramework/openspec/changes/archive/2026-03-29-add-real-server-startup-entry-point/tasks.md

1. Server Bootstrap Contract

• 1.1 Add a server bootstrap configuration type that captures reliable port, optional sync port, and supported dependency overrides for shared server startup.
• 1.2 Add a concrete server runtime entry type that validates bootstrap configuration and creates the underlying ServerNetworkHost through shared integration code.
• 1.3 Ensure the new entry contract preserves the existing client single-session path and does not introduce UnityEngine dependencies into shared networking code.

2. Runtime Lifecycle Ownership

• 2.1 Implement startup sequencing so the server runtime entry point starts reliable and optional sync transports before reporting success.
• 2.2 Implement failure rollback and idempotent shutdown so partially started resources are stopped and managed sessions are cleared through existing host cleanup behavior.
• 2.3 Expose the minimal runtime handle needed for callers to access ServerNetworkHost, drain messages, evaluate lifecycle, and stop the runtime without reconstructing components.

3. Regression Coverage And Integration Guidance

• 3.1 Add or update edit-mode tests covering reliable-only startup, dual-transport startup, startup failure rollback, and repeated shutdown behavior.
• 3.2 Add or update tests confirming the runtime entry point preserves multi-session lifecycle visibility and cleanup semantics through ServerNetworkHost.
• 3.3 Update TODO or related integration-facing documentation to point future server wiring at the new runtime entry point.