docs(ecosystem): split remaining roadmap into hardening buckets

docs/ecosystem/ECOSYSTEM_IMPLEMENTATION_TRACKER.md

@@ -60,6 +60,64 @@ Build a shared ByteLyst ecosystem layer so products do not behave like isolated
 - the implementation roadmap baseline is materially complete through Phase 5
 - the remaining work is mostly documentation hardening and optional product expansion, not missing core baseline functionality
 
+### Remaining Work Buckets
+
+#### Must-Finish Hardening
+
+- [ ] expand adoption docs beyond the currently covered products and flows
+      Owner:
+  - `learning_ai_common_plat`
+    Notes:
+  - add missing adoption coverage for additional ecosystem repos that are expected to consume shared contracts
+- [ ] harden the verification matrix with repo-level test ownership
+      Owner:
+  - `learning_ai_common_plat`
+    Notes:
+  - define who owns runtime, artifact, timeline, and e2e verification in each participating repo
+- [ ] revise the temporary ownership model if the working team changes
+      Owner:
+  - `learning_ai_common_plat`
+    Notes:
+  - current model assumes Saravana, Codex, Windsurf, and Cursor only
+- [ ] define broader shared artifact storage and lifecycle rules
+      Owner:
+  - `learning_ai_common_plat`
+    Notes:
+  - current contract covers artifact shape, but not long-term retention, versioning, or archival rules
+- [ ] broaden the shared event taxonomy beyond the currently implemented phase seams
+      Owner:
+  - `learning_ai_common_plat`
+    Notes:
+  - current event taxonomy is strong for Phases 1 to 5 but not yet ecosystem-complete
+- [ ] harden approvals and trust policy details
+      Owner:
+  - `learning_ai_common_plat`
+    Notes:
+  - current approvals/trust model is still a draft and needs a more complete policy matrix
+- [ ] finish marketplace inventory and entitlement details
+      Owner:
+  - `learning_ai_common_plat`
+    Notes:
+  - the marketplace unification doc exists, but product inventory and entitlement rules are still open
+- [ ] finish longer-term timeline hosting and filtering decisions
+      Owner:
+  - `learning_ai_common_plat`
+    Notes:
+  - the current hosted timeline baseline works, but longer-term production hosting and filtering policy still needs closure
+
+#### Optional Product Enhancements
+
+- [ ] evaluate richer FlowMonk replay execution controls
+      Owner:
+  - `learning_ai_flowmonk`
+    Notes:
+  - current runtime review and replay inspection are sufficient for the baseline; execution controls are optional product expansion
+- [ ] evaluate richer Cowork checkpoint drill-in
+      Owner:
+  - `oss/learning_ai_claw-cowork`
+    Notes:
+  - current checkpoint summaries and refs are sufficient for the baseline; richer drill-in is optional product expansion
+
 ---
 
 ## 2. Tracking Rules