Add comprehensive configuration and testing for HMAC File Server 3.2

- Introduced configuration files for Docker, Podman, and SystemD deployments.
- Implemented a comprehensive test suite for HMAC validation, file uploads, and network resilience.
- Added debugging scripts for live monitoring of upload issues and service status.
- Created minimal configuration for testing purposes.
- Developed multiple test scripts to validate HMAC calculations and response handling.
- Enhanced upload tests to cover various scenarios including invalid HMAC and unsupported file extensions.
- Improved logging and error analysis capabilities for better diagnostics.

tests/test-response-body.sh

@@ -0,0 +1,55 @@
+#!/bin/bash
+# Test with full response body capture
+
+BASE_PATH="c184288b79f8b7a6f7d87ac7f1fb1ce6dcf49a80"
+SUB_PATH="responsebody"
+FILENAME="test.mp4"
+FULL_PATH="$BASE_PATH/$SUB_PATH/$FILENAME"
+SECRET="f6g4ldPvQM7O2UTFeBEUUj33VrXypDAcsDt0yqKrLiOr5oQW"
+
+TEST_FILE="/tmp/test_response.mp4"
+echo -n "Response body test" > "$TEST_FILE"
+FILE_SIZE=$(stat -c%s "$TEST_FILE")
+
+HMAC_MESSAGE="$FULL_PATH $FILE_SIZE"
+HMAC_CALC=$(printf "%s" "$HMAC_MESSAGE" | openssl dgst -sha256 -hmac "$SECRET" | cut -d' ' -f2)
+
+echo "=== Testing with Full Response Capture ==="
+echo "Path: $FULL_PATH"
+echo "HMAC: $HMAC_CALC"
+echo ""
+
+# Capture full response including body
+RESPONSE=$(curl -X PUT \
+     -H "Content-Type: video/mp4" \
+     -H "User-Agent: TestResponseBody/1.0" \
+     --data-binary "@$TEST_FILE" \
+     "https://share.uuxo.net/$FULL_PATH?v=$HMAC_CALC" \
+     -s \
+     -w "CURL_STATUS:%{http_code}\nCURL_SIZE:%{size_upload}\n" \
+     2>&1)
+
+echo "=== Full Response ==="
+echo "$RESPONSE"
+echo ""
+
+# Extract just the response body (everything before CURL_STATUS)
+RESPONSE_BODY=$(echo "$RESPONSE" | sed '/CURL_STATUS:/,$d')
+echo "=== Response Body Only ==="
+echo "'$RESPONSE_BODY'"
+echo ""
+
+# Check response length
+RESPONSE_LENGTH=${#RESPONSE_BODY}
+echo "Response body length: $RESPONSE_LENGTH characters"
+
+if [ $RESPONSE_LENGTH -eq 32 ]; then
+    echo "✅ Response is exactly 32 characters (matches Nginx logs)"
+elif [ $RESPONSE_LENGTH -eq 0 ]; then
+    echo "⚠️ Empty response body"
+else
+    echo "ℹ️ Different response length than expected"
+fi
+
+# Clean up
+rm -f "$TEST_FILE"