CTID encoder truncates "network_id" values above "65535"

[RaymondSeven]

Clio’s "encodeCTID" helper accepts "networkId" as "uint16_t", while the ETL network ID is stored and passed as "uint32_t".

As a result, network IDs above "65535" are silently truncated before validation. For example, network ID "70000" becomes "4464", causing Clio to emit a valid-looking but incorrect CTID.

Affected Paths

• "account_tx"
• Transaction WebSocket subscriptions
• Expanded "tx" JSON responses
• CTID lookup through the "tx" method

A CTID emitted by Clio on such a network cannot be queried back successfully because the decoded 16-bit network ID does not match the full ETL network ID.

Expected Behavior

Clio should omit the CTID when the network ID cannot fit within the CTID 16-bit network field, matching "rippled" behavior.

Suggested Fix

Change "encodeCTID" to accept "uint32_t" values and perform range validation before encoding:

std::optionalstd::string
encodeCTID(
uint32_t ledgerSeq,
uint32_t txnIndex,
uint32_t networkId
) noexcept;

Also update "toExpandedJson" to accept "std::optional<uint32_t>" instead of "std::optional<uint16_t>".

Example

For "network_id = 70000":

Expected: no CTID
Actual: CTID contains network ID 4464