Added DevContainer Config (#7379)

.devcontainer/devcontainer.json

@@ -0,0 +1,15 @@
+{
+  "name": "ChilliCream Dev Container",
+  "build": {
+      "dockerfile": "dockerfile",
+      "context": "."
+  },
+  "features": {
+      "ghcr.io/devcontainers/features/docker-in-docker:2": {
+          "version": "latest",
+          "enableNonRootDocker": "true",
+          "moby": "true"
+      }
+  },
+  "postCreateCommand": "./init.sh"
+}

.devcontainer/dockerfile

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+# Use the base image specified in the devcontainer.json
+FROM mcr.microsoft.com/devcontainers/base:bullseye
+
+# Install dependencies
+RUN apt-get update && apt-get install -y wget apt-transport-https curl
+
+# Install .NET 6 SDK
+RUN wget https://dot.net/v1/dotnet-install.sh -O dotnet-install.sh \
+    && chmod +x dotnet-install.sh \
+    && ./dotnet-install.sh --channel 6.0 --install-dir /usr/share/dotnet --architecture arm64 \
+    && ln -s /usr/share/dotnet/dotnet /usr/bin/dotnet
+
+# Install .NET 7 SDK
+RUN ./dotnet-install.sh --channel 7.0 --install-dir /usr/share/dotnet --architecture arm64
+
+# Install .NET 8 SDK (when available)
+RUN ./dotnet-install.sh --channel 8.0 --install-dir /usr/share/dotnet --architecture arm64
+
+# Install Node.js LTS
+RUN curl -fsSL https://deb.nodesource.com/setup_lts.x | bash - \
+    && apt-get install -y nodejs
+
+# Clean up
+RUN rm dotnet-install.sh \
+    && apt-get clean \
+    && rm -rf /var/lib/apt/lists/*

.github/dependabot.yml

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+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for more information:
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+# https://containers.dev/guide/dependabot
+
+version: 2
+updates:
+ - package-ecosystem: "devcontainers"
+   directory: "/"
+   schedule:
+     interval: weekly