Add deployment config and Python dependencies

Added render.yaml for service deployment configuration and requirements.txt specifying Flask and Gunicorn dependencies.

render.yaml

@@ -0,0 +1,11 @@
+services:
+  - type: web
+    name: bruno-license-server
+    env: python
+    buildCommand: pip install -r requirements.txt
+    startCommand: gunicorn server:app
+    envVars:
+      - key: FLASK_HOST
+        value: 0.0.0.0
+      - key: FLASK_PORT
+        value: 10000

requirements.txt

@@ -0,0 +1,2 @@
+Flask==3.0.0
+gunicorn==21.2.0