Add app icons, MCP server exposure, GitHub integration, and Dockerfile updates

- Bundle app icons for Electron DMG build (icon.png, icon.icns, Linux sized PNGs)
- Expose coworker agent as MCP server with auth middleware
- Add MCP Server sub-tab in Developer settings with endpoint info
- Add GitHub (gh) integration slice and manager
- Fix bun + electron-builder dependency issue (mime-types@2.1.35)
- Update Dockerfile

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: parthmodi152

Dockerfile

@@ -20,16 +20,27 @@ FROM oven/bun:1-debian
 
 WORKDIR /app
 
-# Install gog CLI for Google Workspace integration
+# Install git, gh CLI, and gog CLI
 ARG GOG_VERSION=0.9.0
-RUN apt-get update && apt-get install -y --no-install-recommends wget ca-certificates && \
+RUN apt-get update && apt-get install -y --no-install-recommends \
+      git wget ca-certificates && \
+    # gh CLI via official apt repo
+    mkdir -p -m 755 /etc/apt/keyrings && \
+    wget -nv -O /tmp/gh-keyring.gpg https://cli.github.com/packages/githubcli-archive-keyring.gpg && \
+    cp /tmp/gh-keyring.gpg /etc/apt/keyrings/githubcli-archive-keyring.gpg && \
+    chmod go+r /etc/apt/keyrings/githubcli-archive-keyring.gpg && \
+    echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/githubcli-archive-keyring.gpg] https://cli.github.com/packages stable main" \
+      > /etc/apt/sources.list.d/github-cli.list && \
+    apt-get update && apt-get install -y gh && \
+    # gog CLI for Google Workspace
     ARCH=$(dpkg --print-architecture | sed 's/arm64/arm64/' | sed 's/amd64/amd64/') && \
     wget -O /tmp/gog.tar.gz \
       "https://github.com/steipete/gogcli/releases/download/v${GOG_VERSION}/gogcli_${GOG_VERSION}_linux_${ARCH}.tar.gz" && \
     tar -xzf /tmp/gog.tar.gz -C /usr/local/bin gog && \
     chmod +x /usr/local/bin/gog && \
-    rm /tmp/gog.tar.gz && \
-    apt-get purge -y wget && apt-get autoremove -y && rm -rf /var/lib/apt/lists/*
+    # Cleanup
+    apt-get purge -y wget && apt-get autoremove -y && \
+    rm -rf /var/lib/apt/lists/* /tmp/gh-keyring.gpg /tmp/gog.tar.gz
 
 # Copy the self-contained build output (includes its own node_modules)
 COPY --from=builder /app/.mastra/output ./