- Add POSIX `--` end-of-options handling in argument parser
- Stop consuming flags after `--` and pass remaining tokens as messages
- Stop global `--profile`/alias extraction at first registered subcommand
- Add focused tests for parseArgs and profile bootstrap boundary behavior
Refactored the optional-value flag handling so per-flag quirks live in
shared metadata instead of the args.ts dispatch loop. Added
OPTIONAL_FLAGS in cli/flag-tables.ts with rejectEmpty and
rejectAtPrefix controls, then updated both parseArgs and the profile
bootstrap to consult the same source of truth.
This restores the pre-refactor behavior for `--resume`, `-r`, and
`--session`: an empty-string argv token is treated as “no value
provided”, leaving resume=true and the empty string to fall through as a
positional message on the next iteration. `--list-models` intentionally
keeps its existing empty-string behavior.
Added regressions for parseArgs(["--resume", ""]), parseArgs(["-r",
""]), parseArgs(["--session", ""]), the preserved
`--list-models` empty-string behavior, and the bootstrap path where an
empty-string resume value precedes `--profile`.
Ogrodev