feat: add minimal TypedDataFrame housing example

[neilkamath]

Summary

• Adds a minimal TypedDataFrame example (typed_housing_mini) using the built-in data/housing.csv dataset.
• Demonstrates selecting a small column slice, freezing into a typed schema (freezeWithError), and running a typed filter.

Windows compatibility

• Gates hasktorch-based examples (california_housing, iris) on Windows, so the examples executable can build/run without Torch/libtorch there.
• Non-Windows behavior is unchanged (torch examples remain available).

How to run

• cabal run examples -- typed_housing_mini

Test plan

• Ran cabal run examples -- typed_housing_mini on Windows (prints row counts and succeeds).