tasks: add 5 cleanup tasks from Phase 1 review, mark review complete

Review found Phase 1 approved with minor issues. Created cleanup tasks:
- napi-identity-provider-wiring (bug: NAPI bypasses IdentityProvider)
- panic-free-static-config (code smell: panic/unwrap in production path)
- non-exhaustive-public-api (future-proofing public API types)
- adr-doc-comments (doc convention: ADR references in new modules)
- ssh-session-recv-stub-doc (documentation: mark stubs as planned)

tasks/cleanup/ssh-session-recv-stub-doc.md

@@ -0,0 +1,41 @@
+---
+id: cleanup/ssh-session-recv-stub-doc
+name: Document SshSession::recv() stub as planned future work
+status: pending
+depends_on:
+  - review/phase1-core-modifications
+scope: single
+risk: trivial
+impact: isolated
+level: implementation
+---
+
+## Description
+
+`SshSession::recv()` and `send()` in `crates/alknet-core/src/interface/ssh.rs` are stubs — `recv()` unconditionally returns `None` and `send()` returns `Ok(())`. Per the architecture spec (interface.md), the `alknet-control:0` channel should eventually route to call protocol events through this interface.
+
+This is acceptable for Phase 1 (tunnel functionality still works via the existing `ServerHandler`), but it should be documented as planned future work so it doesn't get forgotten.
+
+**Fix**:
+- Add doc comment on `SshSession::recv()` and `send()` explicitly marking them as stubs
+- Note that call protocol event bridging from SSH channels is planned for Phase 2/3
+- Add `// TODO:` or similar marker
+
+## Acceptance Criteria
+
+- [ ] `SshSession::recv()` has doc comment stating it's a stub for Phase 1
+- [ ] `SshSession::send()` has doc comment stating it's a stub for Phase 1
+- [ ] Comment references call protocol integration as planned future work
+
+## References
+
+- crates/alknet-core/src/interface/ssh.rs — recv() and send() stubs
+- docs/architecture/interface.md — alknet-control:0 channel routing to call protocol
+
+## Notes
+
+> Identified during Phase 1 review (W3)
+
+## Summary
+
+> To be filled on completion