JSON automation

Machine integrations should use the ledgerwerk.cli.v1 envelope and process the exit code, not parse human output.

{
  "schema": "ledgerwerk.cli.v1",
  "ok": true,
  "tool": "memoryledger",
  "command": "status",
  "result": {},
  "events": [],
  "warnings": []
}

Errors use the same envelope:

{
  "schema": "ledgerwerk.cli.v1",
  "ok": false,
  "tool": "memoryledger",
  "command": "memory show",
  "error": {
    "code": "not-found",
    "message": "Memory not found.",
    "details": { "domain_code": "NOT_FOUND" },
    "remediation": []
  },
  "events": [],
  "warnings": []
}

Global options are --root PATH, --json, and --version. Exit codes are:

Code	Meaning
0	Success
1	Domain failure
2	Usage or invalid input
3	Unavailable or missing resource
4	Conflict or failed precondition
5	External process failure