* feat: restrict user permissions and multi-node IP constraints
- Non-admin users cannot set speedId or inPort on forward create/update
- Multi-entrance tunnels disable custom listen IP for forwards
- Multi-exit tunnels disable custom connect IP
- Multi-node hop chains disable custom connect IP per hop
- Remove tunnel-first-IP fallback in forward ingress resolution
- Add contract tests for non-admin permission restrictions
Entire-Checkpoint: 133693290660
* fix: allow non-admin users to submit null speedId and zero inPort
- Backend: Check speedId is not nil before rejecting non-admin requests
- Backend: Only reject inPort if value > 0 for non-admin users
- Frontend: Only include speedId and inPort in payload for admin users
- Tests: Add contract tests for null speedId and zero inPort cases
- Non-admin users cannot set speedId or inPort on forward create/update
- Multi-entrance tunnels disable custom listen IP for forwards
- Multi-exit tunnels disable custom connect IP
- Multi-node hop chains disable custom connect IP per hop
- Remove tunnel-first-IP fallback in forward ingress resolution
- Add contract tests for non-admin permission restrictions
Entire-Checkpoint: 133693290660
- Add speed_limit and auto_clear fields to forward update mutation
- Update user tunnel save to preserve these fields
- Add contract test for forward save preserving speed_limit
- Add plan documents for the fixes
Reduce repetitive raw SQL in test bodies by routing scalar and multi-column checks through shared helpers, keeping test intent clearer without changing behavior.
- Extract database layer into model and repo packages
- Split repository into focused modules (control, federation, flow, groups, mutations)
- Remove monolithic db.go and sqlite/repository.go
- Update handlers to use new repository structure
- Migrate contract tests to new patterns
- Add migration plan documentation
Bridge Java-to-Go runtime behavior by enforcing forward ownership checks, wiring node command dispatch/diagnostics, and adding contract coverage so migrated APIs can run with production semantics.