中文主文档：../zh/dev-plan.md
Status: near/mid-term investment notes. Product vision/milestones remain in the spec; Demo authority is demo-ipc /.proto.
Updated: 2026-07-26 (M5 gap audit: ../zh/m5-gap-audit.md)
| Conclusion | Note |
|---|---|
| No whole-repo rewrite | Windows Demo path works; frame / EnvelopeChannel / tab_strip / TabEmbedMap are already deep seams |
| Advance by spec milestones | M4b / M5 / M6 done (heartbeat 2s / 6s timeout /「无响应」+ terminate); next multi-backend / optional M7 |
| Deepen with the next feature | Tear-out rule extraction (G6) and REQ timeouts opportunistic |
Reuse tab_strip / tab_embed_map / envelope_builder.hpp (pure rules / thin helpers; Host·Client + tests share).
| Strength | Candidate |
|---|---|
| Strong (top) | Keep wid behind the embed seam — done |
| Strong | Extract tear-out / merge / shell-lifecycle rules like tab_strip |
| Done | Envelope helper — makeEnvelope / makeResponse in envelope_builder.hpp |
| Worth exploring | Land IEmbedBackend (Win-only first) — when a second adapter is planned |
Scan top recommendation: wid → embed first done; peel Shell rules when touching tear-out.
- Pre-refactor for a future IPC stack swap
- A second-platform Backend interface with no second adapter planned
- One-shot rewrite of Host into the full paper object tree (
ClientPage, …)
| Direction | Posture |
|---|---|
Done — hello_client.py, offline test_frame_envelope.py, Qt harness mps_tests_m4b_hello |
|
| M5 tear-out / merge | Closable (G1/G4 fixed; G2/G3 Demo Client no-op) — gap audit |
Done — heartbeat_policy.hpp; Client 2s EVT; Host 6s Unhealthy; tab suffix + terminate |
|
| x11 / inproc / multi-client | IEmbedBackend next (wid already localized) |
| QThemeEngine in Host | Discuss at integration time — do not pre-refactor now |