Add --queries CSV flag to lark-cli contact +search-user for parallel
multi-name fanout (up to 20 entries, partial-failure tolerant).
Output shape in fanout mode:
- data.users[] rows carry matched_query (string)
- data.queries[] sidecar lists each input with {query, error?, has_more}
- top-level data.has_more removed (per-query in queries[])
- error is omitempty; absent on success
Single --query mode is byte-for-byte unchanged (regression-guarded).
--queries is mutually exclusive with --query and --user-ids; bool
filters propagate to every sub-request.
Workers run with WaitGroup + buffered semaphore + index-slot writes;
each has defer recover() converting panics to internal error: ... in
the sidecar (no stack to stderr). Pre-canceled context returns
context canceled without making the request.
All-failed exit propagates first failure's HTTP/API code via ErrAPI;
falls back to ExitInternal for transport/parse/panic/ctx-canceled
(avoids emitting code 0, which means success in the Lark protocol).
HTTP non-200 ErrMsg now includes truncated response body for diagnosis.
Drive-by: signature field is now omitempty (mostly empty in practice).
Infrastructure:
- internal/httpmock gains BodyFilter/OnMatch/Reusable/CapturedBodies
hooks to support concurrent stub-driven tests
- internal/output adds 'users' to knownArrayFields so CSV picks the
primary array correctly
Change-Id: I3c14195fb8e094ae150002d90c36a0e4a0cc97d0
