Use a dedicated development image so Cargo builds have the Rust toolchain, rustfmt, pkg-config, and DBus headers instead of inheriting the minimal release runtime.\n\nReplace the host HOME bind mount with named volumes for CodeWhale state and Cargo artifacts. This avoids invalid Windows HOME expansion, preserves non-root write access, and keeps Rust build churn off the workspace bind mount.\n\nDocument the Dev Container storage and rebuild behavior.\n\nVerification:\n- Built the Dev Container image with Docker Desktop\n- Verified non-root Cargo, Rust, Git, pkg-config, DBus discovery, and writable state/target paths\n- cargo build --locked\n- cargo test -p codewhale-config --locked
(cherry picked from commit 8b1ceea7f0)
Signed-off-by: Hmbown <101357273+Hmbown@users.noreply.github.com>
