* feat: add enable/disable toggle for xray routing rules
* fix(routing): never let the internal api rule be disabled
The Enable/Disable toggle could strip the stats api rule: its table
switch was locked, but the rule-form modal's Enable dropdown was not,
and stripDisabledRules had no api-rule guard (EnsureStatsRouting's
delete only runs when the api rule isn't already first). A disabled
api rule then dropped out of the generated config and broke traffic
accounting.
- stripDisabledRules now always keeps the api rule, even if marked
disabled, and strips the panel-only enabled key from every rule
- extract isApiRule helper (backend + frontend) and reuse it across
the table switch, card switch, and form modal
- disable the form-modal Enable dropdown for the api rule
- add stripDisabledRules tests covering the api-rule survival path
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Co-authored-by: Sanaei <ho3ein.sanaei@gmail.com>
Abdalrahman