* refactor(errors): unify error output as YAML envelope to stderr
Replace the 100+ line chalk renderError() switch-case with a single
YAML envelope output path. All errors now output a structured
{ok, error: {code, message, help, exitCode}} envelope to stderr,
regardless of TTY status.
This simplifies the error system from 5 mechanisms to 3:
1. Error Envelope (YAML → stderr) — unified error output
2. Exit codes (sysexits.h) — process exit semantics
3. Diagnostic (OPENCLI_DIAGNOSTIC=1) — autofix repair context
Removed: chalk error rendering, ERROR_ICONS map, classifyGenericError
regex classifier, BrowserConnectError-specific bridge status display.
Added: toEnvelope() utility, ErrorEnvelope type.
* refactor(errors): migrate adapters to throw CliError, update docs
- Migrate xueqiu adapters from return [{error,help}] to throw CliError
- xueqiu/utils.ts: fetchXueqiuJson now throws AuthRequiredError/
CommandExecutionError instead of returning {error, help} objects
- Remove resolveColumns error fallback from output.ts (no longer needed)
- Add verbose stack trace support to error envelope
- Add ADAPTER_LOAD to AutoFix hint trigger codes
- Update skill docs (adapter-templates, explorer, oneshot, advanced-patterns)
to recommend throw CliError pattern instead of return [{error, help}]
* fix: remove remaining dead error-forwarding in 4 xueqiu adapters + review fixes
- Remove `if ('error' in d) return [d]` from feed, hot, search, kline
(fetchXueqiuJson now throws, so these were dead code)
- Add `stack?: string` to ErrorEnvelope interface (removes type cast hack)
- Fix adapter-templates.md: use AuthRequiredError instead of plain Error
* fix: migrate barchart/quote and yahoo-finance/quote to throw CliError
Last two adapters that silently returned [] on error instead of
throwing CommandExecutionError.
* fix: self-review fixes — doc evaluate crash, error messages, kline consistency
- adapter-templates.md: getServerContext was throwing AuthRequiredError
inside a function serialized into page.evaluate() (browser has no
CliError). Reverted to return {error} sentinel + func() body throw.
- yahoo-finance/quote, barchart/quote: include symbol in fallback error msg
- xueqiu/kline: throw EmptyResultError instead of returning [] for
consistency with other xueqiu adapters
jakevin