feat: network token enforcement

[evilrobot-01]

Network now launches with zero total issuance, requiring a reserve transfer from the relay to get started. This will be automated with a pop up feature, but for now one can reserve transfer from relay to Pop with the following encoded calls:

• Send 100 UNIT to Alice on Pop
  0x630804000100098e0400010100d43593c715fdd31c61141abd04a99fd6822c8558854ccde39a5684e7a56da27d04040000000b00407a10f35a0000000000
• Send 100 UNIT to Bob on Pop
  0x630804000100098e04000101008eaf04151687736326c9fea17e25fc5287613693c912909cb226aa4794f26a4804040000000b00407a10f35a0000000000

Commits:

• filter balances::force* calls to prevent minting of native token, ensuring network can only be funded from relay token
• removes endowments from chainspec
• removes endowments from genesis within integration tests, updating tests accordingly

[Daanvdplas]

Very nice!

Should we add testing the integrations in the CI or is that too much?

[peterwht]

LGTM. We will probably want to introduce some tests later on for allowing users to withdraw tokens back to the relay chain

[peterwht]

Reserve transfer to Pop Network script tracker: #47

[evilrobot-01]

LGTM. We will probably want to introduce some tests later on for allowing users to withdraw tokens back to the relay chain

Already exists:

pop-node/integration-tests/src/lib.rs

Line 325 in 9102be2

fn reserve_transfer_native_asset_from_para_to_relay() {

[peterwht]

LGTM. We will probably want to introduce some tests later on for allowing users to withdraw tokens back to the relay chain

Already exists:

pop-node/integration-tests/src/lib.rs

Line 325 in 9102be2

fn reserve_transfer_native_asset_from_para_to_relay() {

Ah nice. Missed that one and thought we were testing transfer to SA account.

[evilrobot-01]

Should we add testing the integrations in the CI or is that too much?

Already included - see https://github.com/r0gue-io/pop-node/actions/runs/8383155297/job/22958325605: