Phase 3: per-member namespacing — schema 5 (the core group conversion)

One shared vault, per-member namespaces for all churn-prone state:
- _agent/members/<member>/{preferences,current-context,heartbeat,inbox}.md
  + _agent/sessions/<member>/ session logs; shared group-profile.md
  (with auto-rostered ## Members) and inbox/captures/group.md.
- Self-onboarding: load detects a bootstrapped vault lacking THIS
  member's namespace and seeds it (bootstrap.member_bootstrap()).
- load = 8 reads (marker, group profile, my prefs/context/heartbeat,
  shared daily, my inbox, group inbox); heartbeat fallback lists my
  sessions dir; scope show/set is per member.
- Member-tagged shared writes: daily Agent Log lines and entity-update
  dated blocks are '- YYYY-MM-DD [member]: …'; capture --inbox targets
  my inbox; triage lists both inboxes and writes attributed audit lines.
- routing.json: member-anchors / inbox-group / member-segmented session
  routes; single-user anchor paths retired (schema 5). vault_lint runs
  aging-inbox + scope-drift per member. migrate.py 4->5 for alpha vaults.
- Scaffold: member-* seeds ({{MEMBER}}-stamped), group-profile/group-inbox
  seeds, marker schema 5. Docs (SKILL, vault-layout, routing-map,
  bootstrap) synced; manifest -> 2.0.0-alpha.3; rebuilt plugin (81 files).

Verified: all suites green (25/25 unit, scaffold, routing-sync 36 routes,
4 mock e2e, run_eval unchanged) + 19-check two-member smoke: bootstrap ->
self-onboard -> interleaved tagged daily log -> cross-member update
attribution -> independent scopes -> mine/group triage -> lint clean.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

eval/test_features.py

@@ -121,14 +121,14 @@ def main():
 
         # 6. inbox capture (unknown home)
         h.chorus(CHORUS, "capture", "stray thought", "--inbox")
-        inbox = h.ground("inbox/captures/inbox.md")
+        inbox = h.ground("_agent/members/eval-member/inbox.md")
         check("inbox capture lands", inbox and "stray thought" in inbox)
 
         # 7. sweep --apply rebuilds the index, symmetrizes, stamps schema 3
         r = h.chorus(SWEEP, "--apply")
         marker = h.ground("_agent/chorus-vault.md")
         check("sweep runs clean", r.returncode == 0, r.stdout + r.stderr)
-        check("sweep stamps schema 4", marker and "schema_version=4" in marker.replace(": ", "="), marker)
+        check("sweep stamps schema 5", marker and "schema_version=5" in marker.replace(": ", "="), marker)
         idx2 = h.ground("_agent/index/entities.json")
         check("sweep rebuilt index has all entities",
               idx2 and all(s in idx2 for s in ["bob-smith", "mpm", "alpha", "beta"]))
@@ -188,7 +188,7 @@ def main():
                            capture_output=True, text=True,
                            env=dict(os.environ, CHORUS_BASE=base, CHORUS_KEY=KEY, CHORUS_MEMBER="eval-member", CHORUS_TODAY="2026-06-21"))
         bob3 = h.ground("resources/people/bob-smith.md") or ""
-        check("v1.5 update keeps the dated bullet", "- 2026-06-21: met at expo" in bob3, r.stdout + r.stderr)
+        check("v1.5 update keeps the dated bullet", "- 2026-06-21 [eval-member]: met at expo" in bob3, r.stdout + r.stderr)
         check("v1.5 update keeps EVERY body line",
               "  second line survives" in bob3 and "  third line too" in bob3, bob3)
 
@@ -259,7 +259,7 @@ def main():
               and primary[0].get("status") == "active", json.dumps(primary[:1]))
 
         # 15. one-tap triage: structured list, then route with an audit trail.
-        h.seed("inbox/captures/inbox.md",
+        h.seed("_agent/members/eval-member/inbox.md",
                "- 2026-06-01: prefers uv over pip\n- 2026-06-20: try the new espresso place\n")
         r = h.chorus(CHORUS, "triage", "--list", "--json")
         try:
@@ -282,7 +282,7 @@ def main():
         check("v1.5 triage writes the processing-log audit line",
               "prefers uv over pip" in plog and "_agent/memory/semantic/prefers-uv-over-pip.md" in plog, plog)
         check("v1.5 triage keeps the original capture",
-              "prefers uv over pip" in (h.ground("inbox/captures/inbox.md") or ""))
+              "prefers uv over pip" in (h.ground("_agent/members/eval-member/inbox.md") or ""))
 
         # 16. lint flags incomplete entity frontmatter; sweep backfills it.
         h.seed("resources/companies/driftco.md",