feat(coord): add todos system with per-user/machine/project scoping

New coord_todos table and API endpoints (GET/POST/PUT/DELETE /api/coord/todos)
supporting manual and auto-created items, sub-tasks via parent_id, and inclusive
for_user/for_machine filters (OR-null) for sync/save display. sync.sh Phase 7
now shows pending todos grouped by project after every sync. CLAUDE.md documents
auto-creation behavior for unresolved follow-up. Web/email pricing doc updated:
block time rate clarified, INKY reference removed, dates updated.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.claude/scripts/sync.sh

@@ -417,7 +417,84 @@ else
     cd "$CLAUDETOOLS_DIR"
 fi
 
-# Phase 7: Summary
+# Phase 7: Pending To-Do Review
+echo ""
+echo "=== Phase 7: Pending To-Dos ==="
+
+COORD_API="http://172.16.3.30:8001"
+TODO_USER=""
+TODO_MACHINE="$MACHINE"
+if [ -f ".claude/identity.json" ]; then
+    TODO_USER=$($PYTHON -c "import json; d=json.load(open('.claude/identity.json')); print(d.get('user',''))" 2>/dev/null || echo "")
+fi
+
+if [ -n "$TODO_USER" ]; then
+    TODO_JSON=$(curl -s --max-time 5 \
+        "${COORD_API}/api/coord/todos?for_user=${TODO_USER}&for_machine=${TODO_MACHINE}&status_filter=pending&limit=200" \
+        2>/dev/null || echo "[]")
+
+    TODO_COUNT=$($PYTHON -c "
+import json, sys
+try:
+    data = json.loads('''$TODO_JSON''')
+    print(len(data))
+except:
+    print(0)
+" 2>/dev/null || echo 0)
+
+    if [ "$TODO_COUNT" -gt 0 ]; then
+        echo -e "${YELLOW}  $TODO_COUNT pending item(s) for ${TODO_USER}/${TODO_MACHINE}:${NC}"
+        $PYTHON - <<PYEOF
+import json, sys
+
+raw = """$TODO_JSON"""
+try:
+    todos = json.loads(raw)
+except Exception as e:
+    print(f"  [WARNING] Could not parse todos: {e}")
+    sys.exit(0)
+
+# Group by project_key; None -> "Personal"
+groups = {}
+for t in todos:
+    if t.get("parent_id"):
+        continue  # sub-tasks shown under parent
+    key = t.get("project_key") or "Personal"
+    groups.setdefault(key, []).append(t)
+
+# Build sub-task lookup
+subtask_map = {}
+for t in todos:
+    pid = t.get("parent_id")
+    if pid:
+        subtask_map.setdefault(pid, []).append(t)
+
+CYAN  = "\033[0;36m"
+RESET = "\033[0m"
+YELLOW= "\033[1;33m"
+
+for group_name in sorted(groups.keys(), key=lambda x: (x == "Personal", x)):
+    print(f"\n  {CYAN}[{group_name}]{RESET}")
+    for t in groups[group_name]:
+        assigned = ""
+        if t.get("assigned_to_user") and t["assigned_to_user"] != "$TODO_USER":
+            assigned = f"  -> {t['assigned_to_user']}"
+        if t.get("assigned_to_machine") and t["assigned_to_machine"].upper() != "$TODO_MACHINE".upper():
+            assigned += f"/{t['assigned_to_machine']}"
+        auto = " [auto]" if t.get("auto_created") else ""
+        print(f"    [ ] {t['text']}{auto}{assigned}  (id:{t['id'][:8]})")
+        for st in subtask_map.get(t["id"], []):
+            print(f"        [ ] {st['text']}  (id:{st['id'][:8]})")
+PYEOF
+        echo ""
+    else
+        echo -e "${GREEN}[OK]${NC} No pending to-dos."
+    fi
+else
+    echo -e "${YELLOW}[INFO]${NC} No identity — skipping todo check."
+fi
+
+# Phase 8: Summary
 echo ""
 echo "=== Sync Summary ==="