feat(install): add installation script for building and symlinking the binary

install.sh

@@ -0,0 +1,31 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+BIN_NAME="zesdex"
+REPO_DIR="$(cd "$(dirname "$0")" && pwd)"
+TARGET_DIR="$REPO_DIR/target/release"
+BIN_PATH="$TARGET_DIR/$BIN_NAME"
+
+echo "==> Building $BIN_NAME (release)..."
+cargo build --release --manifest-path "$REPO_DIR/Cargo.toml"
+
+if [ ! -f "$BIN_PATH" ]; then
+    echo "ERROR: build succeeded but binary not found at $BIN_PATH" >&2
+    exit 1
+fi
+
+echo "==> Binary built: $BIN_PATH"
+
+INSTALL_DIR="${INSTALL_DIR:-$HOME/.local/bin}"
+mkdir -p "$INSTALL_DIR"
+SYMLINK_PATH="$INSTALL_DIR/$BIN_NAME"
+
+if [ -L "$SYMLINK_PATH" ] || [ -f "$SYMLINK_PATH" ]; then
+    echo "==> Removing existing symlink or file at $SYMLINK_PATH"
+    rm -f "$SYMLINK_PATH"
+fi
+
+ln -s "$BIN_PATH" "$SYMLINK_PATH"
+echo "==> Symlinked: $SYMLINK_PATH -> $BIN_PATH"
+echo ""
+echo "Done. Make sure $INSTALL_DIR is in your PATH."