fix(deps): follow trac-msb and trac-peer to hyperdht 6.29.6

[TracSystems]

Last link of a three-repo chain. Re-pins both framework dependencies:

dep	from	to	PR
trac-msb	7220c257	ea72a9c8	Trac-Systems/main_settlement_bus#802
trac-peer	370e81cf	e4b52ad1	Trac-Systems/trac-peer#37

Both carry exactly one change: hyperdht 6.27.0 → 6.29.6.

Why

A long-running peer aborts roughly every few days:

TypeError: Cannot read properties of null (reading 'buffer')
    at crypto_generichash_update (sodium-native/index.js:445)
    at crypto_generichash_batch (sodium-native/index.js:405)
    at annSignable (hyperdht/lib/persistent.js:275)
    at Persistent.onunannounce (hyperdht/lib/persistent.js:62)

hyperdht installs its persistent request handlers on a once('persistent') listener and never tears them down, while dht.id returns null for as long as the node is ephemeral — and an adaptive node returns to ephemeral on every wakeup or network change. In 6.27.0 the dispatcher only checked that the handlers existed, so an inbound UNANNOUNCE reached onunannounce, which passes that null id into sodium.crypto_generichash_batch, where it is dereferenced in C. onannounce has always carried its own || !this.dht.id guard and never crashed — that asymmetry is the tell.

Fixed upstream in hyperdht 6.29.4 — holepunchto/hyperdht#242, 8f66a11:

- if (this._persistent === null) return false
+ if (this._persistent === null || this.id === null) return false

Why both pins move together

This is the part that makes the chain three repos instead of two. trac-peer depends on trac-msb at its own exact sha. Bumping only this repo's trac-msb pin adds 12 lockfile entries, including node_modules/trac-peer/node_modules/hyperdht@6.27.0 — a second, nested trac-msb still carrying the broken version. The lockfile reads as fixed while the peer keeps crashing on the nested copy.

Measured on the lockfile:

	trac-msb pin only	both pins
entries added	12	0
entries removed	1	0
node_modules/hyperdht	6.29.6	6.29.6
node_modules/trac-peer/node_modules/hyperdht	6.27.0	absent

After this PR the tree holds a single hyperdht (6.29.6), one trac-msb and one trac-peer.

Notes

• 6.29.6 is the last release of the 6.29 line: the guard plus two small fixes, no new dependencies. Deliberately not 6.30.0+, which adds the "closest nodes in key" feature, a new hyperdht-address dependency, and parallel pre-connect on FIND_PEER — behaviour changes that do not belong in a crash fix.
• Both upstream PRs leave their version untouched, since consumers pin by sha.
• Merge order: main_settlement_bus#802 → trac-peer#37 → this. The shas pinned here are those PR heads, so this can be validated before either merges.

🤖 Generated with Claude Code