Migration to UV, introducing db_write, mqtt_ingestion, db_migrations, half working prototype.

services/db_write/pyproject.toml

@@ -0,0 +1,22 @@
+[project]
+name = "db-write"
+version = "0.1.0"
+description = "Database writer service that reads from Redis streams and writes to PostgreSQL/TimescaleDB"
+readme = "README.md"
+requires-python = ">=3.13"
+dependencies = [
+    "redis>=6.4.0",
+    "psycopg2-binary>=2.9.0",
+    "python-dotenv>=1.0.0",
+    "pydantic>=2.0.0",
+    "structlog>=24.0.0",
+    "alembic>=1.13.0",
+    "sqlalchemy>=2.0.0",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=7.0.0",
+    "fakeredis>=2.0.0",
+    "pytest-asyncio>=0.21.0",
+]