feat: add HOL audit trail hcs-2 + hcs-1

[kierzniak]

Fix #562

[skurzyp-blockydevs]

The logic here looks solid to me. I'm just not sure aboute the current directory structure. src/shared is starting to feel a bit bloated, and we might want to rethink how we organize these hooks, policies, and their underlying services.

Given the size and scope of this hook - and the fact that it's tied specifically to HOL standards rather than core Hedera functionality - I think it me might consider extracting it into its own companion package (e.g., hedera-agent-kit-hol-extension or @hedera-agent-kit/hol). Separating this out would keep the core SDK lightweight and make the HOL-specific tools easier to maintain.

[kierzniak]

I moved hook and related directories to own directory. Please review @skurzyp-blockydevs @piotrswierzy.

[skurzyp-blockydevs]

@kierzniak Could you please add some integration tests? The idea is to test on chain execution and validate it without using llm so those tests should look similar to the test/inegration/hedera. The idea is to:

• create hak agent with this hook configured for some selected tool
• manually triger that tool - we want to skip the LLM inference
• check onchain result of the hook

Mind that the setup/teardown approach of this kind of tests. We need to ensure that hbars transfered to the accounts created during those tests are sent back and not leaking. Also, mind that we can check the onchain data using Mirror node but it has some delay 4-5s typically so artificial sleeps are needed.

[kierzniak]

@kierzniak Could you please add some integration tests? The idea is to test on chain execution and validate it without using llm so those tests should look similar to the test/inegration/hedera. The idea is to:

• create hak agent with this hook configured for some selected tool
• manually triger that tool - we want to skip the LLM inference
• check onchain result of the hook

Mind that the setup/teardown approach of this kind of tests. We need to ensure that hbars transfered to the accounts created during those tests are sent back and not leaking. Also, mind that we can check the onchain data using Mirror node but it has some delay 4-5s typically so artificial sleeps are needed.

@skurzyp-blockydevs Integrations test added. Please review.

[skurzyp-blockydevs]

Approved but we will need to document it later