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

environment.yml

@@ -1,18 +1,20 @@
 name: mini-nav
 channels:
-    - pytorch
-    - nvidia
-    - aihabitat-nightly
-    - conda-forge
+  - pytorch
+  - nvidia
+  - aihabitat-nightly
+  - conda-forge
 dependencies:
-    - python=3.10
-    - pip
-    - habitat-sim=0.3.3
-    - withbullet
-    - pytorch
-    - torchvision
-    - pytorch-cuda=12.1
-    # Toolsets
-    - uv
-    - just
-    - nodejs>=20.0.0
+  - python=3.10
+  - pip
+  - habitat-sim=0.3.3
+  - habitat-baselines=0.3.320250127
+  - habitat-lab=0.3.320250127
+  - withbullet
+  - pytorch
+  - torchvision
+  - pytorch-cuda=12.1
+  # Toolsets
+  - uv
+  - just
+  - nodejs>=20.0.0