chore: add cross Dockerfile

.gitignore

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+CLAUDE.md
+.claude
+COMMIT_MESSAGE.md
+wrks
+nushell
+nushell-*
+*.tar.gz 
+#*-nushell-plugins.tar.gz
+github-com
+.coder
+target
+distribution
+.qodo
+# enviroment to load on bin/build
+.env
+# OSX trash
+.DS_Store
+
+# Vscode files
+.vscode
+
+# Emacs save files
+*~
+\#*\#
+.\#*
+
+# Vim-related files
+[._]*.s[a-w][a-z]
+[._]s[a-w][a-z]
+*.un~
+Session.vim
+.netrwhist
+
+# cscope-related files
+cscope.*
+
+# User cluster configs
+.kubeconfig
+
+.tags*
+
+# direnv .envrc files
+.envrc
+
+# make-related metadata
+/.make/
+
+# Just in time generated data in the source, should never be committed
+/test/e2e/generated/bindata.go
+
+# This file used by some vendor repos (e.g. github.com/go-openapi/...) to store secret variables and should not be ignored
+!\.drone\.sec
+
+# Godeps workspace
+/Godeps/_workspace
+
+/bazel-*
+*.pyc
+
+# generated by verify-vendor.sh
+vendordiff.patch
+.claude/settings.local.json

Dockerfile.cross

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+# Dockerfile for cross-platform compilation
+# Supports building for multiple targets using docker
+
+FROM ubuntu:22.04
+
+# Install build essentials
+RUN apt-get update && apt-get install -y \
+    build-essential \
+    curl \
+    git \
+    pkg-config \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Rust
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain stable
+ENV PATH="/root/.cargo/bin:${PATH}"
+
+# Install cross tool for cross-compilation
+RUN cargo install cross
+
+# Create workspace directory
+WORKDIR /workspace
+
+# Copy entire project
+COPY . .
+
+# Default build target
+ARG TARGET=x86_64-unknown-linux-gnu
+ENV BUILD_TARGET="${TARGET}"
+
+# Build command
+RUN cross build --target "${BUILD_TARGET}" --release
+
+# Extract binaries to output directory
+RUN mkdir -p /output/bin && \
+    for binary in typedialog typedialog-tui typedialog-web; do \
+        if [ -f "target/${BUILD_TARGET}/release/${binary}" ]; then \
+            cp "target/${BUILD_TARGET}/release/${binary}" /output/bin/ || \
+            cp "target/${BUILD_TARGET}/release/${binary}.exe" /output/bin/; \
+        fi; \
+    done
+
+# Copy configuration
+RUN cp -r config /output/
+
+# Create manifest
+RUN echo "{ \"target\": \"${BUILD_TARGET}\", \"built\": \"$(date -u +'%Y-%m-%dT%H:%M:%SZ')\" }" > /output/BUILD_INFO.json
+
+# Default command
+CMD ["/bin/bash"]