Merge branch 'release/SIENTIAPDE-1973' into rc/ingestor2

Brings the dependency fix from #39 (grpcio-tools moved to
requirements-dev.txt, protobuf>=7.35 added) and the 2.0.0-rc2 version.

Conflict in requirements-dev.txt resolved keeping both sides:
python-dotenv (rc/ingestor2) and grpcio-tools (release). Also restores
the missing newline that had glued python-dotenv onto the ipdb comment
line, so pip was not installing it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "ingestor"
-version = "2.0.0-rc1"
+version = "2.0.0-rc2"
 description = "Sientia DataOps Ingestor - OPC Tag Ingestor"
 readme = "README.md"
 requires-python = ">=3.11"

requirements-dev.txt

@@ -16,4 +16,10 @@ pytest-asyncio>=0.21.0   # Async test support (already in main requirements)
 
 # Development Tools
 ipython>=8.12.0          # Enhanced Python shell
-ipdb>=0.13.13            # IPython debuggerpython-dotenv>=1.0    # local dev only: app/seed read .env if present (in-cluster env comes from Helm)
+ipdb>=0.13.13            # IPython debugger
+python-dotenv>=1.0    # local dev only: app/seed read .env if present (in-cluster env comes from Helm)
+
+# gRPC code generation (regenerate ingestor/proto/*_pb2*.py) — not needed
+# at runtime: the generated stubs are committed. Kept out of requirements.txt
+# because workers install only from the cluster package index.
+grpcio-tools>=1.60

requirements.txt

@@ -8,4 +8,6 @@ prometheus_client
 pymongo
 nats-py>=2.6
 grpcio>=1.60
-grpcio-tools>=1.60
+# Runtime of the committed gRPC stubs: ingestor/proto/opc_gateway_pb2.py was
+# generated with protobuf 7.35.0 and validates the runtime version on import.
+protobuf>=7.35