Enhances README and script improvements

Updates README to include HTML format, architecture overview,
and comprehensive feature descriptions. Improves build scripts
by adding cleanup of environment variables and validating Go
installation, reducing cross-platform build issues.

Fixes README inconsistencies and improves script reliability.

scripts/build.sh

@@ -217,6 +217,14 @@ if [ "$SHOW_TARGETS" = true ]; then
     exit 0
 fi
 
+# Validate Go installation
+if ! command -v go >/dev/null 2>&1; then
+    echo "Error: Go is not installed or not in PATH"
+    echo "Please install Go from https://golang.org/dl/"
+    echo "Or if running on Windows, use the PowerShell script: scripts\\build.ps1"
+    exit 1
+fi
+
 # Validate entry point exists
 if [ ! -f "$ENTRYPOINT" ]; then
     echo "Error: Entry point file '$ENTRYPOINT' does not exist"
@@ -315,7 +323,7 @@ for idx in "${!TARGETS[@]}"; do
         fi
         build_cmd+=("${GO_BUILD_FLAGS_ARRAY[@]}" -o "$OUTDIR/$BIN" "$ENTRYPOINT")
 
-        if CGO_ENABLED=1 GOOS="$os" GOARCH="$arch" "${build_cmd[@]}" 2>"$OUTDIR/$BIN.log"; then
+        if CGO_ENABLED=0 GOOS="$os" GOARCH="$arch" "${build_cmd[@]}" 2>"$OUTDIR/$BIN.log"; then
             update_status $((idx + 1)) '✔' "$BIN done"
             rm -f "$OUTDIR/$BIN.log"
         else
@@ -356,3 +364,6 @@ if [ "$VERBOSE" = true ]; then
     echo "  ────────────────────────────────────────────────"
     printf "  Total: %d/%d successful, %s total size\n" "$success_count" "${#TARGETS[@]}" "$(numfmt --to=iec-i --suffix=B $total_size 2>/dev/null || echo "${total_size} bytes")"
 fi
+
+# Clean up environment variables to avoid contaminating future builds
+unset GOOS GOARCH CGO_ENABLED