fix(cli): keep --json output machine-parseable

[dacrypt]

Problem

--json output was emitted via console.print(json.dumps(...)) on the human-facing Rich console. Rich then does two things that corrupt the payload:

1. Wraps to console width — 80 columns whenever stdout is not a TTY, i.e. every | jq invocation. The wrap inserts a literal newline inside string values.
2. Parses [...] in values as markup — silently dropping it, or raising MarkupError and killing the command outright on a value like [/close].

Repro (before)

tesla --json providers status | jq .
# jq: parse error: Invalid string: control characters from U+0000 through U+001F must be escaped

COLUMNS=200 tesla --json providers status | jq .   # works — the bug is width-dependent

Any value containing an unmatched closing tag crashed the process:

rich.errors.MarkupError: closing tag '[/close]' at position 44 doesn't match any open tag

Fix

Add a dedicated console for machine-readable output and route every JSON emission site through it:

json_console = Console(soft_wrap=True, markup=False, highlight=False)

def write_json(payload: str) -> None:
    """Write a pre-serialized JSON document to stdout, verbatim."""
    json_console.print(payload)

• 93 console.print(json.dumps(...)) / console.print(x.model_dump_json(...)) sites migrated across 21 files.
• The 64 console.print_json() sites were already safe (Rich's own JSON renderer neither wraps nor parses markup) and are left untouched.

Verification

Before → after, piping each --json command into a strict JSON parser:

command	before	after
providers status	BROKEN	VALID
data sources	BROKEN	VALID
config show	VALID	VALID
alerts / events list / config validate / providers capabilities / automations list	VALID	VALID

tesla --json providers status | jq -r '.[].name'
# ble vehicle-api teslaMate abrp home-assistant apprise mqtt

• 2024 unit tests pass (2015 baseline + 9 new regression tests)
• ruff check clean

Tests added

tests/test_output_json_integrity.py — 9 tests covering both failure modes against a deliberately narrowed (40-col) console: long-value wrapping for render_dict / render_table / render_model / render_success, and markup-like values ([bold], [/close], [red]x[/red], [dim]x) round-tripping intact.

🤖 Generated with Claude Code