Metadata and graph

curl 'http://localhost:3333/api/kiwi/query?q=TABLE+title,+status+FROM+"concepts"+WHERE+status+=+"draft"'

{
  "mode": "TABLE",
  "headers": ["path", "title", "status"],
  "rows": [
    ["concepts/billing.md", "Billing", "draft"],
    ["concepts/users.md", "Users", "draft"]
  ]
}

curl 'http://localhost:3333/api/kiwi/query/aggregate?group=status&calc=count,avg:priority'

[
  {"status": "draft", "count": 12, "avg_priority": 2.3},
  {"status": "verified", "count": 45, "avg_priority": 1.8},
  {"status": "stale", "count": 3, "avg_priority": 3.0}
]

curl -X POST 'http://localhost:3333/api/kiwi/view/refresh'

{"refreshed": 4, "duration_ms": 120}

curl 'http://localhost:3333/api/kiwi/backlinks?path=concepts/auth.md'

[
  {"path": "concepts/users.md", "title": "Users", "context": "...uses [[auth]] for login..."},
  {"path": "concepts/api-keys.md", "title": "API Keys", "context": "...see [[auth]] for details..."}
]

curl 'http://localhost:3333/api/kiwi/graph'

{
  "nodes": [
    {"id": "concepts/auth.md", "title": "Authentication", "group": "concepts"},
    {"id": "concepts/users.md", "title": "Users", "group": "concepts"},
    {"id": "concepts/billing.md", "title": "Billing", "group": "concepts"}
  ],
  "edges": [
    {"source": "concepts/users.md", "target": "concepts/auth.md"},
    {"source": "concepts/billing.md", "target": "concepts/users.md"}
  ]
}