glm-5.3-flash
3d932be75f
Option (b) of the FWD-17 decision: payloads decode as JSON when valid
(number stays number, quoted string stays string); non-JSON payloads
surface as {"data": <raw>, "event": <name|null>} instead of
silently degrading to a JSON string. The parser captures the frame's
event: field (WHATWG last-wins) and resets all pending state on every
blank-line dispatch, so an event:-only frame (no data) cannot leak its
name into a later frame. JSON frames surface as themselves even under
a named event; the implicit 'message' default never wraps a payload.
Verification: cargo test (33 forward tests incl. 4 new FWD-17
contract/parser pins), clippy, fmt.