chore: migrate habitat dependencies to conda and add cocotb for hardware verification

- Move habitat-baselines and habitat-lab from pip to conda environment
- Add cocotb and cocotb-tools to pyproject.toml dependencies
- Update ty environment roots to include hw/sim directory
- Add sim/sim_build to gitignore
- Create CLAUDE.md with project spec, coding guidelines, and directory structure
- Update uv.lock to reflect dependency changes

pyproject.toml

@@ -10,8 +10,6 @@ dependencies = [
     "dash-ag-grid>=33.3.3",
     "dash-mantine-components>=2.5.1",
     "datasets>=4.5.0",
-    "habitat-baselines>=0.3.320250127",
-    "habitat-lab>=0.3.320250127",
     "httpx[socks]>=0.28.1",
     "lancedb>=0.30.1",
     "marimo[mcp]>=0.22.0",
@@ -29,17 +27,19 @@ dependencies = [
 dev = [
     "basedpyright>=1.37.4",
     "pip>=26.0.1",
+    "cocotb>=2.0.1",
     "pytest>=9.0.2",
     "pytest-mpi>=0.6",
     "python-lsp-server>=1.14.0",
     "ruff>=0.15.7",
     "ty>=0.0.24",
     "websockets>=16.0",
+    "cocotb-tools>=0.1.0",
 ]
 
 [tool.ty.environment]
 python = "$UV_PROJECT_ENVIRONMENT"
-root = ["./mini-nav", "./notebooks"]
+root = ["./mini-nav", "./notebooks", "./hw/sim"]
 
 [tool.basedpyright]
 include = ["mini-nav", "notebooks"]