Sync devcontainer-setup templates with upstream claude-code-devcontainer (#101)

- Add initializeCommand to create ~/.gitconfig if missing (prevents bind mount failure)
- Add trailofbits/skills-curated marketplace plugin to Dockerfile
- Update SKILL.md to document the new marketplace plugin

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: DarkaMaul

plugins/devcontainer-setup/skills/devcontainer-setup/SKILL.md

@@ -89,7 +89,7 @@ Then apply language-specific modifications below.
 
 The base template includes:
 
-- **Claude Code** with marketplace plugins (anthropics/skills, trailofbits/skills)
+- **Claude Code** with marketplace plugins (anthropics/skills, trailofbits/skills, trailofbits/skills-curated)
 - **Python 3.13** via uv (fast binary download)
 - **Node 22** via fnm (Fast Node Manager)
 - **ast-grep** for AST-based code search

plugins/devcontainer-setup/skills/devcontainer-setup/resources/Dockerfile

@@ -76,7 +76,8 @@ ENV PATH="/home/vscode/.local/bin:$PATH"
 # Install Claude Code natively with marketplace plugins
 RUN curl -fsSL https://claude.ai/install.sh | bash && \
   claude plugin marketplace add anthropics/skills && \
-  claude plugin marketplace add trailofbits/skills
+  claude plugin marketplace add trailofbits/skills && \
+  claude plugin marketplace add trailofbits/skills-curated
 
 # Install Python 3.13 via uv (fast binary download, not source compilation)
 RUN uv python install 3.13 --default

plugins/devcontainer-setup/skills/devcontainer-setup/resources/devcontainer.json

@@ -63,6 +63,7 @@
     "PYTHONDONTWRITEBYTECODE": "1",
     "PIP_DISABLE_PIP_VERSION_CHECK": "1"
   },
+  "initializeCommand": "test -f \"$HOME/.gitconfig\" || touch \"$HOME/.gitconfig\"",
   "workspaceMount": "source=${localWorkspaceFolder},target=/workspace,type=bind,consistency=delegated",
   "workspaceFolder": "/workspace",
   "postCreateCommand": "uv run --no-project /opt/post_install.py"