chore: integrate hanzo-agent into workspace

- Rename package from hanzoai to hanzo-agent (avoid conflict with root)
- Add to workspace members
- Add numpy as required dependency (used by memory module)

pkg/hanzo-agent/pyproject.toml

@@ -1,5 +1,5 @@
 [project]
-name = "hanzoai"
+name = "hanzo-agent"
 version = "0.0.4"
 description = "Hanzo AI SDK"
 readme = "README.md"
@@ -15,6 +15,7 @@ dependencies = [
     "typing-extensions>=4.12.2, <5",
     "requests>=2.0, <3",
     "types-requests>=2.0, <3",
+    "numpy>=1.24.0",
 ]
 classifiers = [
     "Typing :: Typed",

pyproject.toml

@@ -65,7 +65,7 @@ dev-dependencies = [
 members = [
   "pkg/hanzo",
   "pkg/hanzo-aci",
-  # pkg/hanzo-agent is a git submodule - not a workspace member
+  "pkg/hanzo-agent",
   "pkg/hanzo-mcp",
   "pkg/hanzo-memory",
   "pkg/hanzo-network",