fix: package fully static/portable binaries for Linux and Windows

.cargo/config.toml

@@ -0,0 +1,2 @@
+[target.x86_64-pc-windows-msvc]
+rustflags = ["-C", "target-feature=+crt-static"]

.github/workflows/release.yml

@@ -18,8 +18,8 @@
 # crate it just uploaded.
 #
 # Binary targets (CLI `tonin` and `tonin-proxy`, built per release):
-#   - x86_64-unknown-linux-gnu   (Linux x86_64)
-#   - aarch64-unknown-linux-gnu  (Linux ARM64, e.g. Graviton)
+#   - x86_64-unknown-linux-musl   (Linux x86_64)
+#   - aarch64-unknown-linux-musl  (Linux ARM64, e.g. Graviton)
 #   - x86_64-apple-darwin        (macOS Intel)
 #   - aarch64-apple-darwin       (macOS Apple Silicon)
 #   - x86_64-pc-windows-msvc     (Windows x86_64)
@@ -183,10 +183,10 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - target: x86_64-unknown-linux-gnu
+          - target: x86_64-unknown-linux-musl
             os: ubuntu-latest
             archive: tar.gz
-          - target: aarch64-unknown-linux-gnu
+          - target: aarch64-unknown-linux-musl
             os: ubuntu-latest
             archive: tar.gz
           - target: x86_64-apple-darwin
@@ -229,6 +229,10 @@ jobs:
             echo "skipped=false" >> "$GITHUB_OUTPUT"
           fi
 
+      - name: Install musl-tools
+        if: matrix.target == 'x86_64-unknown-linux-musl' && steps.check.outputs.skipped != 'true'
+        run: sudo apt-get update && sudo apt-get install -y musl-tools
+
       - name: Install Rust 1.93 with target ${{ matrix.target }}
         if: steps.check.outputs.skipped != 'true'
         uses: dtolnay/rust-toolchain@stable
@@ -274,10 +278,10 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - target: x86_64-unknown-linux-gnu
+          - target: x86_64-unknown-linux-musl
             os: ubuntu-latest
             archive: tar.gz
-          - target: aarch64-unknown-linux-gnu
+          - target: aarch64-unknown-linux-musl
             os: ubuntu-latest
             archive: tar.gz
           - target: x86_64-apple-darwin
@@ -317,6 +321,10 @@ jobs:
             echo "skipped=false" >> "$GITHUB_OUTPUT"
           fi
 
+      - name: Install musl-tools
+        if: matrix.target == 'x86_64-unknown-linux-musl' && steps.check.outputs.skipped != 'true'
+        run: sudo apt-get update && sudo apt-get install -y musl-tools
+
       - name: Install Rust 1.93 with target ${{ matrix.target }}
         if: steps.check.outputs.skipped != 'true'
         uses: dtolnay/rust-toolchain@stable

.gitignore

@@ -7,6 +7,7 @@
 # Cargo.
 **/Cargo.lock.bak
 .cargo/
+!.cargo/config.toml
 
 # Incremental compilation / cache.
 **/*.rlib

scripts/install.sh

@@ -82,8 +82,8 @@ detect_target() {
     case "$os" in
         Linux)
             case "$arch" in
-                x86_64)  echo "x86_64-unknown-linux-gnu" ;;
-                aarch64|arm64) echo "aarch64-unknown-linux-gnu" ;;
+                x86_64)  echo "x86_64-unknown-linux-musl" ;;
+                aarch64|arm64) echo "aarch64-unknown-linux-musl" ;;
                 *) err "Unsupported Linux architecture: $arch (pre-built binary not available; use 'cargo install tonin')" ;;
             esac ;;
         Darwin)
@@ -143,7 +143,7 @@ install_binary() {
     local repo="$1"      # e.g. Rushit/tonin
     local bin="$2"       # e.g. tonin
     local version="$3"   # e.g. v0.5.4
-    local target="$4"    # e.g. x86_64-unknown-linux-gnu
+    local target="$4"    # e.g. x86_64-unknown-linux-musl
     local dest_dir="$5"  # e.g. /usr/local/bin
 
     local dest="${dest_dir}/${bin}"