Use uv.lock to stop heroku crashes (#324)

* Add requirements.txt for Heroku deployment

* Use .python-version instead of runtime.txt for heroku

* add uv.lock

Author: Mark Saroufim

.python-version

@@ -0,0 +1 @@
+3.13

requirements.txt

@@ -0,0 +1,14 @@
+PyGithub
+aiohttp
+discord.py
+audioop-lts; python_version >= '3.13'
+python-dotenv
+requests
+modal
+psycopg2-binary
+yoyo-migrations
+better_profanity
+PyYAML
+fastapi[all]
+uvicorn
+jinja2