Initial release: Go Jdenticon library v0.1.0

- Core library with SVG and PNG generation
- CLI tool with generate and batch commands
- Cross-platform path handling for Windows compatibility
- Comprehensive test suite with integration tests

benchmark/run-go-benchmark.sh

@@ -0,0 +1,58 @@
+#!/bin/bash
+
+# Run Go benchmark and save results
+echo "=== Go jdenticon Performance Benchmark ==="
+echo "Running Go benchmark..."
+
+# Run the benchmark and capture output
+BENCHMARK_OUTPUT=$(cd .. && go test -run="^$" -bench=BenchmarkGenerate64pxIcon -benchmem ./jdenticon 2>&1)
+
+echo "$BENCHMARK_OUTPUT"
+
+# Parse benchmark results
+# Example output: BenchmarkGenerate64pxIcon-10    	   92173	     12492 ns/op	   13174 B/op	     239 allocs/op
+BENCHMARK_LINE=$(echo "$BENCHMARK_OUTPUT" | grep BenchmarkGenerate64pxIcon)
+ITERATIONS=$(echo "$BENCHMARK_LINE" | awk '{print $2}')
+NS_PER_OP=$(echo "$BENCHMARK_LINE" | awk '{print $3}')
+BYTES_PER_OP=$(echo "$BENCHMARK_LINE" | awk '{print $5}')
+ALLOCS_PER_OP=$(echo "$BENCHMARK_LINE" | awk '{print $7}')
+
+# Convert nanoseconds to milliseconds and microseconds  
+TIME_PER_ICON_MS=$(echo "scale=4; $NS_PER_OP / 1000000" | bc | awk '{printf "%.4f", $0}')
+TIME_PER_ICON_US=$(echo "scale=2; $NS_PER_OP / 1000" | bc | awk '{printf "%.2f", $0}')
+ICONS_PER_SECOND=$(echo "scale=2; 1000000000 / $NS_PER_OP" | bc)
+
+echo ""
+echo "=== go-jdenticon Results ==="
+echo "Iterations: $ITERATIONS"
+echo "Time per icon: ${TIME_PER_ICON_MS} ms (${TIME_PER_ICON_US} μs)"
+echo "Throughput: ${ICONS_PER_SECOND} icons/sec"
+echo "Memory per icon: $BYTES_PER_OP bytes"
+echo "Allocations per icon: $ALLOCS_PER_OP allocs"
+
+# Create JSON results
+cat > results-go.json << EOF
+{
+  "implementation": "go-jdenticon",
+  "timestamp": "$(date -u +"%Y-%m-%dT%H:%M:%S.000Z")",
+  "goVersion": "$(go version | awk '{print $3}')",
+  "config": {
+    "iconSize": 64,
+    "numInputs": 1000,
+    "benchmarkIterations": $ITERATIONS
+  },
+  "performance": {
+    "nsPerOp": $NS_PER_OP,
+    "timePerIconMs": $TIME_PER_ICON_MS,
+    "timePerIconUs": $TIME_PER_ICON_US,
+    "iconsPerSecond": $ICONS_PER_SECOND
+  },
+  "memory": {
+    "bytesPerOp": $(echo "$BYTES_PER_OP" | sed 's/[^0-9]//g'),
+    "allocsPerOp": $(echo "$ALLOCS_PER_OP" | sed 's/[^0-9]//g')
+  }
+}
+EOF
+
+echo ""
+echo "Results saved to: results-go.json"