Initial commit: JMon cross-platform monitoring system

- gRPC client-server metrics collection
- PeriodicTimer-based 5-second sampling
- Delta encoding with configurable thresholds
- Queue/retry mechanism for resilience
- ProcessId tracking for duplicate detection
- Server-side state reconstruction
- Native AOT compilation support
- Docker/Podman containerization
- PostgreSQL + TimescaleDB persistence layer

JMonServer/Containerfile

@@ -0,0 +1,35 @@
+FROM mcr.microsoft.com/dotnet/sdk:10.0 AS build
+RUN apt-get update && apt-get install -y build-essential clang zlib1g-dev && rm -rf /var/lib/apt/lists/*
+WORKDIR /src
+
+COPY ["JMonServer/JMonServer.csproj", "JMonServer/"]
+COPY ["JMonAgent/JMonAgent.csproj", "JMonAgent/"]
+COPY ["Protos/", "Protos/"]
+
+RUN dotnet restore "JMonServer/JMonServer.csproj"
+
+COPY . .
+RUN dotnet build "JMonServer/JMonServer.csproj" -c Release -o /app/build
+
+FROM build AS publish
+RUN dotnet publish "JMonServer/JMonServer.csproj" -c Release -o /app/publish
+
+FROM mcr.microsoft.com/dotnet/runtime-deps:10.0-noble
+RUN apt-get update && apt-get install -y openssl && rm -rf /var/lib/apt/lists/*
+WORKDIR /app
+COPY --from=publish /app/publish .
+
+# Generate self-signed PFX certificate for HTTPS (no password)
+RUN mkdir -p /root/.aspnet/https && \
+    openssl req -x509 -newkey rsa:4096 -keyout /tmp/key.pem -out /tmp/cert.pem \
+    -days 365 -nodes -subj "/CN=*" && \
+    openssl pkcs12 -export -out /root/.aspnet/https/aspnetapp.pfx -inkey /tmp/key.pem -in /tmp/cert.pem -passout pass: && \
+    rm /tmp/key.pem /tmp/cert.pem
+
+EXPOSE 5001
+ENV ASPNETCORE_URLS=https://0.0.0.0:5001
+ENV ASPNETCORE_Kestrel__Certificates__Default__Path=/root/.aspnet/https/aspnetapp.pfx
+ENV ASPNETCORE_Kestrel__Certificates__Default__Password=
+ENV ASPNETCORE_ENVIRONMENT=Development
+
+ENTRYPOINT ["./JMonServer"]