feat: Implement Ollama OAI Bridge with core functionality

- Add BridgeProperties class for configuration management.
- Create GatewayProxyConfiguration to define routing and proxying logic.
- Implement LlamaServerClient for communication with the upstream Llama server.
- Develop OllamaDiscoveryController to handle API requests and responses.
- Introduce OllamaDiscoveryService for business logic and data processing.
- Set up OllamaOaiBridgeApplication as the main entry point for the application.
- Add RequestBodyCachingFilter to cache request bodies for processing.
- Create application.properties for configuration settings.
- Implement unit tests for the application to ensure functionality.
- Add start.sh script for easy application startup.

start.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+script_dir="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+jar_file="$script_dir/ollama-oai-bridge.jar"
+
+if [[ ! -f "$jar_file" ]]; then
+  echo "Jar not found: $jar_file" >&2
+  exit 1
+fi
+
+java_opts=()
+if [[ -n "${JAVA_OPTS:-}" ]]; then
+  read -r -a java_opts <<<"${JAVA_OPTS}"
+fi
+
+app_opts=()
+if [[ -n "${OLLAMA_OAI_BRIDGE_OPTS:-}" ]]; then
+  read -r -a app_opts <<<"${OLLAMA_OAI_BRIDGE_OPTS}"
+fi
+
+exec java "${java_opts[@]}" "${app_opts[@]}" -jar "$jar_file" "$@"