fix: add agent key auth for ingest endpoints

examples/docker/python-instrumented/Dockerfile

@@ -0,0 +1,31 @@
+# ═══════════════════════════════════════════════════════════
+# 🐍 OPHION - Python Instrumented App Dockerfile
+# Example showing how to add OpenTelemetry to any Python app
+# ═══════════════════════════════════════════════════════════
+
+FROM python:3.12-slim
+
+WORKDIR /app
+
+# Install dependencies
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Install OpenTelemetry auto-instrumentation
+RUN pip install --no-cache-dir \
+    opentelemetry-distro \
+    opentelemetry-exporter-otlp \
+    opentelemetry-instrumentation
+
+# Auto-install all available instrumentations
+RUN opentelemetry-bootstrap -a install
+
+# Copy application code
+COPY . .
+
+# Expose port
+EXPOSE 5000
+
+# Start with auto-instrumentation wrapper
+# opentelemetry-instrument auto-configures tracing based on env vars
+CMD ["opentelemetry-instrument", "python", "app.py"]