hpdevkit:0.6.5-beta image requires NPM v0.6.8 — older packages cause state directory deletion

[rippleitinnz]

Summary

When using HP_DEVKIT_IMAGE=evernode/hpdevkit:0.6.5-beta with an
older hpdevkit NPM package (below v0.6.8), contracts fail to deploy
with the following error on every ledger:

Contract process chdir failed.
[err][hpc] Consensus contract execution failed.
[err][hpc] Error occured when closing ledger

Root Cause

The beta devkit image introduced a new disparate directory feature
to support multisig deployments. The cluster script expects
DISPARATE_DIR to be set as an environment variable.

NPM packages below v0.6.8 do not pass DISPARATE_DIR, leaving
$disparate_dir as an empty string in the cluster script. This
causes the following line in sync_instance to evaluate against the
state directory itself:

[ -d $contract_dir/contract_fs/seed/state/ ] && rm -r $contract_dir/contract_fs/seed/state/

The state directory always exists (the contract bundle was just
copied into it), so it gets deleted immediately — leaving HotPocket
with no contract to execute.

Affected Versions

NPM Version	Beta Image	Result
v0.6.4 and below	0.6.5-beta	❌ chdir failed
v0.6.8	0.6.5-beta	✅ Working

Fix

Update the hpdevkit NPM package to v0.6.8:

sudo npm install -g hpdevkit

Verify the update:

hpdevkit version

Additional Notes

• NPM v0.6.8 correctly passes DISPARATE_DIR=disparate to the
  cluster script
• A defensive code fix has been raised as a PR to guard against this
  scenario in future regardless of NPM version
• The stable devkit (evernodedev/hpdevkit) was never affected as
  it predates the disparate directory feature entirely