ci: replace hardcoded /opt/aitbc paths with relative paths

- Update integration-tests workflow to use ./scripts/utils/link-systemd.sh instead of /opt/aitbc/scripts/utils/link-systemd.sh
- Change aitbc-cli symlink from /opt/aitbc/cli/aitbc_cli.py to cli/aitbc_cli.py
- Fix duplicate [tool.mypy] section in agent-coordinator pyproject.toml by merging plugins config
- Update aitbc-core package include path from aitbc_core to aitbc
- Fix aitbc-crypto imports to use absolute package paths instead of relative imports
- Add pynacl>=1.5.0 dependency

packages/py/aitbc-core/pyproject.toml

@@ -22,5 +22,5 @@ build-backend = "poetry.core.masonry.api"
 
 [tool.poetry]
 packages = [
-    { include = "aitbc_core", from = "src" }
+    { include = "aitbc", from = "src" }
 ]

packages/py/aitbc-crypto/src/__init__.py

@@ -1,4 +1,4 @@
 """AITBC crypto utilities package."""
 
-from . import receipt  # noqa: F401
-from . import signing  # noqa: F401
+from aitbc_crypto import receipt  # noqa: F401
+from aitbc_crypto import signing  # noqa: F401

packages/py/aitbc-sdk/pyproject.toml

@@ -11,7 +11,8 @@ dependencies = [
     "cryptography>=41.0.0",
     "requests>=2.31.0",
     "pydantic>=2.5.0",
-    "httpx>=0.25.0"
+    "httpx>=0.25.0",
+    "pynacl>=1.5.0"
 ]
 
 [build-system]

packages/solidity/aitbc-token/package.json

@@ -16,7 +16,7 @@
     "@nomicfoundation/hardhat-ethers": "^4.0.7",
     "@nomicfoundation/hardhat-ignition-ethers": "^3.1.1",
     "@nomicfoundation/hardhat-network-helpers": "^3.0.4",
-    "@nomicfoundation/hardhat-toolbox": "^7.0.0",
+    "@nomicfoundation/hardhat-toolbox": "^7.0.0-hh2",
     "@nomicfoundation/hardhat-verify": "^3.0.13",
     "@typechain/ethers-v6": "^0.5.1",
     "@typechain/hardhat": "^6.0.0",