Implement Pravda: Truth Social to Discord relay service

- Add core modules: database (SQLite), media (ffmpeg), discord (webhook), poller (truthbrush), server (FastAPI)
- Support video transcoding to H.264/AAC with automatic size management
- Handle message splitting for Discord limits (2000 chars, 10 attachments)
- Include interactive buttons (Delete, View Raw, Original Post)
- Add Dockerfile with ffmpeg and entrypoint script
- Add Gitea Actions workflow for CI/CD
- Configure code style tools (black, ruff, mypy)
- Include basic unit tests

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

pyproject.toml

@@ -0,0 +1,66 @@
+[project]
+name = "pravda"
+version = "1.0.0"
+description = "Truth Social to Discord relay service"
+readme = "README.md"
+requires-python = ">=3.12"
+dependencies = [
+    "truthbrush>=0.5.0",
+    "requests>=2.31.0",
+    "fastapi>=0.109.0",
+    "uvicorn[standard]>=0.27.0",
+    "ffmpeg-python>=0.2.0",
+    "pynacl>=1.5.0",
+    "aiofiles>=23.2.0",
+    "httpx>=0.26.0",
+]
+
+[project.optional-dependencies]
+dev = [
+    "black",
+    "ruff",
+    "mypy",
+    "pytest",
+    "types-requests",
+]
+
+[tool.black]
+line-length = 88
+target-version = ["py312"]
+
+[tool.ruff]
+line-length = 88
+target-version = "py312"
+
+[tool.ruff.lint]
+select = [
+    "E",   # pycodestyle errors
+    "W",   # pycodestyle warnings
+    "F",   # pyflakes
+    "I",   # isort
+    "B",   # flake8-bugbear
+    "C4",  # flake8-comprehensions
+    "UP",  # pyupgrade
+]
+ignore = [
+    "E501",  # line too long (handled by black)
+]
+
+[tool.mypy]
+python_version = "3.12"
+strict = true
+warn_return_any = true
+warn_unused_ignores = true
+disallow_untyped_defs = true
+
+[[tool.mypy.overrides]]
+module = [
+    "truthbrush.*",
+    "ffmpeg.*",
+    "nacl.*",
+]
+ignore_missing_imports = true
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+python_files = ["test_*.py"]